Skip to main content

CWE-598

Use of GET Request Method With Sensitive Query Strings

76 CVEs Avg CVSS 6.4 MITRE
6
CRITICAL
21
HIGH
42
MEDIUM
7
LOW
9
POC
0
KEV

Monthly

CVE-2026-88897 Sep 10, 14:46 HIGH This Week

Flextype CMS REST API routes through version 1.0.0-alpha.3 transmit API authentication token pairs as URL query string parameters, causing them to be persistently recorded in web server access logs, proxy logs, CDN logs, and monitoring systems. Any party with read access to those log stores - including system administrators, shared-hosting neighbors, compromised monitoring infrastructure, or log-aggregation services - can extract valid tokens and use them for full API access. No public exploit identified at time of analysis, but exploitation requires only standard log-reading tools and the vulnerability is trivially exploitable once log access is obtained.

Information Disclosure Flextype
NVD GitHub
CVSS 4.0
8.2
CVE-2026-76179 Aug 27, 21:22 CRITICAL CISA Emergency

Authentication token theft and session impersonation affects the web management interface of Ebyte NE2-D11 industrial gateway firmware, where session tokens are insufficiently protected during client-side handling (CWE-598). An attacker able to observe exposed session information can capture and replay a valid token to impersonate an authenticated operator and gain full control of device management functions. The flaw carries a CVSS 4.0 score of 9.3 and was disclosed via CISA ICS-CERT (ICSA-26-237-06); no public exploit has been identified at time of analysis.

Authentication Bypass Ebyte Ne2 D11 Firmware Ebyte
NVD GitHub
CVSS 4.0
9.3
EPSS
0.4%
CVE-2026-63408 Aug 19, 15:53 HIGH PATCH This Week

JWT bearer token leakage in the Grav API Plugin for Grav CMS (prior to 1.0.0-rc.16) exposes valid access tokens to any party with access to server logs, proxy logs, CDN logs, browser history, or Referer headers. The JwtAuthenticator::extractBearerToken() method accepted tokens supplied via the ?token= URL query parameter on every /api/v1 route - including state-changing endpoints - rather than restricting token-in-URL to the file-download routes where it is technically necessary. An attacker who obtains a token from those secondary log sources can replay it with the full API privileges of the original token owner. No active exploitation (CISA KEV) or public exploit code has been identified at time of analysis.

Apache Information Disclosure Grav Plugin Api Getgrav
NVD GitHub
CVSS 3.1
7.5
EPSS
0.4%
CVE-2026-74880 Aug 17, 11:04 PyPI CRITICAL PATCH Act Now

Sensitive-token exposure in openssl_encrypt (the jahlives Python package, pip 'openssl-encrypt') before 1.4.0 stems from the keyserver and telemetry server accepting refresh tokens as GET query parameters. Because URLs are routinely written to server access logs, proxy/CDN logs, browser history, and forwarded in HTTP Referer headers, any party with access to those artifacts can harvest a valid refresh token and mint new access tokens, effectively bypassing authentication. Reported by VulnCheck; no public exploit identified at time of analysis and it is not on CISA KEV.

Authentication Bypass Openssl Encrypt Jahlives
NVD GitHub
CVSS 4.0
9.3
EPSS
0.3%
CVE-2026-14838 Aug 04, 08:42 HIGH PATCH This Week

Session hijacking is possible in HUMANIST Digital Human Resources (versions 26.0 through before 26.1) due to sensitive session tokens being transmitted as GET request query string parameters. Exposure occurs through server access logs, browser history, and HTTP Referer headers leaking to downstream systems. No public exploit code has been identified at time of analysis, and no CISA KEV listing exists, but the CVSS integrity and confidentiality impact ratings are both High, reflecting full session takeover potential.

Information Disclosure Humanist Digital Human Resources Bilin Software And Informatics Consultancy Inc
NVD VulDB
CVSS 3.1
7.4
EPSS
0.3%
CVE-2026-15322 Jul 17, 19:35 HIGH PATCH This Week

Sensitive information disclosure in IBM Engineering AI Hub 1.0.0 through 1.2.0 allows remote attackers to harvest session tokens that the application places directly in URLs, enabling session hijacking and account takeover. IBM (the reporting vendor) has released a fix; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV. The CWE-598 root cause means tokens leak passively into browser history, referer headers, proxy and server access logs rather than requiring an active attack against the server.

Information Disclosure IBM Engineering Ai Hub
NVD VulDB
CVSS 3.1
7.5
EPSS
0.5%
CVE-2026-9592 Jul 17, 13:51 HIGH This Week

Session hijacking in SEPPmail Secure Email Gateway and SEPPmail Cloud before 15.0.4.2 lets an attacker who can observe traffic replay a victim's GINA web portal session because the session token is exposed both in the URL and in an HTTP header. Because the token travels in the request URL, it can leak into proxy logs, browser history, and Referer headers, enabling account takeover of the secure-message portal. There is no public exploit identified at time of analysis and the CVSS 4.0 exploit-maturity metric is 'Unproven' (E:U); the vendor CVSS 4.0 base score is 7.5.

Information Disclosure Seppmail Seppmail Secure Email Gateway Seppmail Cloud
NVD
CVSS 4.0
7.5
EPSS
0.2%
CVE-2026-62386 Jul 17, 00:07 HIGH PATCH This Week

Sensitive token exposure in the Grav CMS API plugin (getgrav/grav-plugin-api) before 1.0.0-rc.16 allows attackers to hijack valid admin sessions after JWT access tokens leak from URLs. Because JwtAuthenticator::extractBearerToken accepts tokens via the ?token= query string on every API route, those tokens are written verbatim into web server access logs, Referer headers, browser history, and upstream proxy/CDN logs, and any captured token grants full admin API access. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the CVSS 4.0 score of 8.2 reflects the high value of the leaked admin credentials.

Information Disclosure Grav Getgrav
NVD GitHub VulDB
CVSS 4.0
8.2
EPSS
0.3%
CVE-2026-58656 Jul 08, 14:17 HIGH This Week

Cross-origin admin account takeover in the Grav CMS API plugin before v1.0.0-rc.16 stems from two combined weaknesses: JWT tokens are accepted through the ?token= URL query parameter and every API response returns the wildcard Access-Control-Allow-Origin: * header. Any attacker who harvests a leaked JWT from access logs, proxy logs, browser history, or Referrer headers can replay it in fully authenticated cross-origin requests from an arbitrary malicious site, then create persistent super-admin accounts and exfiltrate configuration and user data. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV, but a vendor patch (v1.0.0-rc.16) is available.

Information Disclosure
NVD GitHub
CVSS 4.0
8.7
EPSS
0.3%
CVE-2026-44883 May 14, 16:33 Go HIGH PATCH GHSA This Week

Token leakage in Portainer's authentication middleware allows JWT bearer tokens passed via the `?token=<JWT>` URL query parameter to be harvested from reverse-proxy access logs, browser history, and HTTP Referer headers, enabling account takeover for the validity window of the token (default 8 hours). The flaw affected any user with container exec/attach rights - not just administrators - and a leaked admin token grants full control of Portainer and every managed Docker/Kubernetes environment. No public exploit identified at time of analysis, though the underlying behavior was present since JWT auth was introduced and the GitHub Security Advisory provides sufficient detail to weaponize.

Information Disclosure Docker Kubernetes Nginx Suse
NVD GitHub VulDB
CVSS 4.0
7.7
EPSS
0.1%
CVSS 8.2
HIGH This Week

Flextype CMS REST API routes through version 1.0.0-alpha.3 transmit API authentication token pairs as URL query string parameters, causing them to be persistently recorded in web server access logs, proxy logs, CDN logs, and monitoring systems. Any party with read access to those log stores - including system administrators, shared-hosting neighbors, compromised monitoring infrastructure, or log-aggregation services - can extract valid tokens and use them for full API access. No public exploit identified at time of analysis, but exploitation requires only standard log-reading tools and the vulnerability is trivially exploitable once log access is obtained.

Information Disclosure Flextype
NVD GitHub
EPSS 0% CVSS 9.3
CRITICAL Emergency

Authentication token theft and session impersonation affects the web management interface of Ebyte NE2-D11 industrial gateway firmware, where session tokens are insufficiently protected during client-side handling (CWE-598). An attacker able to observe exposed session information can capture and replay a valid token to impersonate an authenticated operator and gain full control of device management functions. The flaw carries a CVSS 4.0 score of 9.3 and was disclosed via CISA ICS-CERT (ICSA-26-237-06); no public exploit has been identified at time of analysis.

Authentication Bypass Ebyte Ne2 D11 Firmware Ebyte
NVD GitHub
EPSS 0% CVSS 7.5
HIGH PATCH This Week

JWT bearer token leakage in the Grav API Plugin for Grav CMS (prior to 1.0.0-rc.16) exposes valid access tokens to any party with access to server logs, proxy logs, CDN logs, browser history, or Referer headers. The JwtAuthenticator::extractBearerToken() method accepted tokens supplied via the ?token= URL query parameter on every /api/v1 route - including state-changing endpoints - rather than restricting token-in-URL to the file-download routes where it is technically necessary. An attacker who obtains a token from those secondary log sources can replay it with the full API privileges of the original token owner. No active exploitation (CISA KEV) or public exploit code has been identified at time of analysis.

Apache Information Disclosure Grav Plugin Api +1
NVD GitHub
EPSS 0% CVSS 9.3
CRITICAL PATCH Act Now

Sensitive-token exposure in openssl_encrypt (the jahlives Python package, pip 'openssl-encrypt') before 1.4.0 stems from the keyserver and telemetry server accepting refresh tokens as GET query parameters. Because URLs are routinely written to server access logs, proxy/CDN logs, browser history, and forwarded in HTTP Referer headers, any party with access to those artifacts can harvest a valid refresh token and mint new access tokens, effectively bypassing authentication. Reported by VulnCheck; no public exploit identified at time of analysis and it is not on CISA KEV.

Authentication Bypass Openssl Encrypt Jahlives
NVD GitHub
EPSS 0% CVSS 7.4
HIGH PATCH This Week

Session hijacking is possible in HUMANIST Digital Human Resources (versions 26.0 through before 26.1) due to sensitive session tokens being transmitted as GET request query string parameters. Exposure occurs through server access logs, browser history, and HTTP Referer headers leaking to downstream systems. No public exploit code has been identified at time of analysis, and no CISA KEV listing exists, but the CVSS integrity and confidentiality impact ratings are both High, reflecting full session takeover potential.

Information Disclosure Humanist Digital Human Resources Bilin Software And Informatics Consultancy Inc
NVD VulDB
EPSS 1% CVSS 7.5
HIGH PATCH This Week

Sensitive information disclosure in IBM Engineering AI Hub 1.0.0 through 1.2.0 allows remote attackers to harvest session tokens that the application places directly in URLs, enabling session hijacking and account takeover. IBM (the reporting vendor) has released a fix; there is no public exploit identified at time of analysis and the CVE is not listed in CISA KEV. The CWE-598 root cause means tokens leak passively into browser history, referer headers, proxy and server access logs rather than requiring an active attack against the server.

Information Disclosure IBM Engineering Ai Hub
NVD VulDB
EPSS 0% CVSS 7.5
HIGH This Week

Session hijacking in SEPPmail Secure Email Gateway and SEPPmail Cloud before 15.0.4.2 lets an attacker who can observe traffic replay a victim's GINA web portal session because the session token is exposed both in the URL and in an HTTP header. Because the token travels in the request URL, it can leak into proxy logs, browser history, and Referer headers, enabling account takeover of the secure-message portal. There is no public exploit identified at time of analysis and the CVSS 4.0 exploit-maturity metric is 'Unproven' (E:U); the vendor CVSS 4.0 base score is 7.5.

Information Disclosure Seppmail Seppmail Secure Email Gateway Seppmail Cloud
NVD
EPSS 0% CVSS 8.2
HIGH PATCH This Week

Sensitive token exposure in the Grav CMS API plugin (getgrav/grav-plugin-api) before 1.0.0-rc.16 allows attackers to hijack valid admin sessions after JWT access tokens leak from URLs. Because JwtAuthenticator::extractBearerToken accepts tokens via the ?token= query string on every API route, those tokens are written verbatim into web server access logs, Referer headers, browser history, and upstream proxy/CDN logs, and any captured token grants full admin API access. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but the CVSS 4.0 score of 8.2 reflects the high value of the leaked admin credentials.

Information Disclosure Grav Getgrav
NVD GitHub VulDB
EPSS 0% CVSS 8.7
HIGH This Week

Cross-origin admin account takeover in the Grav CMS API plugin before v1.0.0-rc.16 stems from two combined weaknesses: JWT tokens are accepted through the ?token= URL query parameter and every API response returns the wildcard Access-Control-Allow-Origin: * header. Any attacker who harvests a leaked JWT from access logs, proxy logs, browser history, or Referrer headers can replay it in fully authenticated cross-origin requests from an arbitrary malicious site, then create persistent super-admin accounts and exfiltrate configuration and user data. There is no public exploit identified at time of analysis and the issue is not listed in CISA KEV, but a vendor patch (v1.0.0-rc.16) is available.

Information Disclosure
NVD GitHub
EPSS 0% CVSS 7.7
HIGH PATCH This Week

Token leakage in Portainer's authentication middleware allows JWT bearer tokens passed via the `?token=<JWT>` URL query parameter to be harvested from reverse-proxy access logs, browser history, and HTTP Referer headers, enabling account takeover for the validity window of the token (default 8 hours). The flaw affected any user with container exec/attach rights - not just administrators - and a leaked admin token grants full control of Portainer and every managed Docker/Kubernetes environment. No public exploit identified at time of analysis, though the underlying behavior was present since JWT auth was introduced and the GitHub Security Advisory provides sufficient detail to weaponize.

Information Disclosure Docker Kubernetes +2
NVD GitHub VulDB

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy