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CWE-837

Improper Enforcement of a Single, Unique Action

13 CVEs Avg CVSS 5.3 MITRE
0
CRITICAL
2
HIGH
7
MEDIUM
4
LOW
7
POC
0
KEV

Monthly

CVE-2026-86198 Sep 09, 13:32 LOW POC PATCH Monitor

Resource pack handler in PocketMine-MP before 5.44.2 allows connected clients to repeatedly trigger pre-spawn progression by sending multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED status, causing the server to instantiate duplicate Player objects and amplify both memory consumption and network traffic. The affected code path in ResourcePacksPacketHandler.php lacked a re-entry guard to prevent handler transitions from executing more than once per session. A publicly available exploit exists via the GHSA-pg53-p7qp-65cv GitHub security advisory, though real-world impact is constrained by a CVSS 4.0 score of 2.3 and the requirement for authenticated client connections.

Pocketmine Mp Pmmp
NVD GitHub
CVSS 4.0
2.3
CVE-2026-45734 Aug 18, 15:51 MEDIUM PATCH This Month

CAPTCHA replay exploitation in MyBB prior to 1.8.40 allows unauthenticated remote attackers to bypass anti-automation controls by reusing a previously validated CAPTCHA challenge token across five distinct action endpoints. The root cause is missing calls to captcha::invalidate_captcha() after successful validation in contact.php, member.php (do_resendactivation, do_lostpw, do_emailuser), and sendthread.php (do_sendtofriend) when the built-in captchaimage setting is active. No public exploit has been identified at time of analysis, and the flaw enables form-abuse automation rather than code execution or data exfiltration.

PHP Authentication Bypass Mybb
NVD GitHub
CVSS 3.1
5.3
EPSS
0.4%
CVE-2026-44601 May 07, 03:09 LOW PATCH Monitor

Tor before version 0.4.9.7 can crash due to a double-close vulnerability in circuit handling when memory pressure conditions exist on the circuit queue, resulting in denial of service to affected clients. The vulnerability requires specific network conditions (high circuit queue load) to trigger but affects all Tor clients running vulnerable versions. A patch is available in Tor 0.4.9.7 and later.

Denial Of Service Tor Torproject
NVD VulDB
CVSS 3.1
3.7
EPSS
0.0%
CVE-2025-54315 Oct 02, 19:15 HIGH POC PATCH This Week

CVE-2025-54315 is a security vulnerability (CVSS 7.1). High severity vulnerability requiring prompt remediation.

Information Disclosure
NVD GitHub
CVSS 3.1
7.1
EPSS
0.0%
CVE-2025-58135 Sep 09, 22:15 MEDIUM This Month

Improper action enforcement in certain Zoom Workplace Clients for Windows may allow an unauthenticated user to conduct a disclosure of information via network access. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Windows Information Disclosure Zoom Microsoft Workplace Desktop +4
NVD
CVSS 3.1
5.3
EPSS
0.0%
CVE-2024-11301 Mar 20, 10:15 MEDIUM POC PATCH This Month

In lunary-ai/lunary before version 1.6.3, the application allows the creation of evaluators without enforcing a unique constraint on the combination of projectId and slug. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Information Disclosure Lunary
NVD GitHub
CVSS 3.0
6.5
EPSS
0.0%
CVE-2024-11717 Jan 02, 17:15 MEDIUM This Month

Tokens in CTFd used for account activation and password resetting can be used interchangeably for these operations. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure
NVD GitHub
CVSS 4.0
6.3
EPSS
0.3%
CVE-2024-11716 Jan 02, 17:15 MEDIUM This Month

While assignment of a user to a team (bracket) in CTFd should be possible only once, at the registration, a flaw in logic implementation allows an authenticated user to reset it's bracket and then. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Information Disclosure
NVD GitHub
CVSS 4.0
5.3
EPSS
6.6%
CVE-2024-4629 Sep 03, 20:15 Maven MEDIUM PATCH This Month

A vulnerability was found in Keycloak. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Red Hat Build Of Keycloak Keycloak Openshift Container Platform +4
NVD GitHub
CVSS 3.1
6.5
EPSS
0.8%
CVE-2023-6759 Dec 13, 15:15 HIGH POC This Week

A vulnerability classified as problematic has been found in Thecosy IceCMS 2.0.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Icecms Thecosy
NVD VulDB
CVSS 3.1
7.5
EPSS
1.0%
CVSS 2.3
LOW POC PATCH Monitor

Resource pack handler in PocketMine-MP before 5.44.2 allows connected clients to repeatedly trigger pre-spawn progression by sending multiple ResourcePackClientResponsePacket packets with STATUS_COMPLETED status, causing the server to instantiate duplicate Player objects and amplify both memory consumption and network traffic. The affected code path in ResourcePacksPacketHandler.php lacked a re-entry guard to prevent handler transitions from executing more than once per session. A publicly available exploit exists via the GHSA-pg53-p7qp-65cv GitHub security advisory, though real-world impact is constrained by a CVSS 4.0 score of 2.3 and the requirement for authenticated client connections.

Pocketmine Mp Pmmp
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM PATCH This Month

CAPTCHA replay exploitation in MyBB prior to 1.8.40 allows unauthenticated remote attackers to bypass anti-automation controls by reusing a previously validated CAPTCHA challenge token across five distinct action endpoints. The root cause is missing calls to captcha::invalidate_captcha() after successful validation in contact.php, member.php (do_resendactivation, do_lostpw, do_emailuser), and sendthread.php (do_sendtofriend) when the built-in captchaimage setting is active. No public exploit has been identified at time of analysis, and the flaw enables form-abuse automation rather than code execution or data exfiltration.

PHP Authentication Bypass Mybb
NVD GitHub
EPSS 0% CVSS 3.7
LOW PATCH Monitor

Tor before version 0.4.9.7 can crash due to a double-close vulnerability in circuit handling when memory pressure conditions exist on the circuit queue, resulting in denial of service to affected clients. The vulnerability requires specific network conditions (high circuit queue load) to trigger but affects all Tor clients running vulnerable versions. A patch is available in Tor 0.4.9.7 and later.

Denial Of Service Tor Torproject
NVD VulDB
EPSS 0% CVSS 7.1
HIGH POC PATCH This Week

CVE-2025-54315 is a security vulnerability (CVSS 7.1). High severity vulnerability requiring prompt remediation.

Information Disclosure
NVD GitHub
EPSS 0% CVSS 5.3
MEDIUM This Month

Improper action enforcement in certain Zoom Workplace Clients for Windows may allow an unauthenticated user to conduct a disclosure of information via network access. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required. No vendor patch available.

Windows Information Disclosure Zoom +6
NVD
EPSS 0% CVSS 6.5
MEDIUM POC PATCH This Month

In lunary-ai/lunary before version 1.6.3, the application allows the creation of evaluators without enforcing a unique constraint on the combination of projectId and slug. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Information Disclosure Lunary
NVD GitHub
EPSS 0% CVSS 6.3
MEDIUM This Month

Tokens in CTFd used for account activation and password resetting can be used interchangeably for these operations. Rated medium severity (CVSS 6.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Information Disclosure
NVD GitHub
EPSS 7% CVSS 5.3
MEDIUM This Month

While assignment of a user to a team (bracket) in CTFd should be possible only once, at the registration, a flaw in logic implementation allows an authenticated user to reset it's bracket and then. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.

Information Disclosure
NVD GitHub
EPSS 1% CVSS 6.5
MEDIUM PATCH This Month

A vulnerability was found in Keycloak. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. No vendor patch available.

Authentication Bypass Red Hat Build Of Keycloak +6
NVD GitHub
EPSS 1% CVSS 7.5
HIGH POC This Week

A vulnerability classified as problematic has been found in Thecosy IceCMS 2.0.1. Rated high severity (CVSS 7.5), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

Information Disclosure Icecms Thecosy
NVD VulDB

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