EUVD-2026-75542
GHSA-pwp3-ppxm-vg9c
Severity by source
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
AC:H reflects the AT:P condition (log access required); PR:N because the attacker needs no CMS credentials; C:H for full token exposure enabling API access.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
2DescriptionCVE.org
Flextype CMS through 1.0.0-alpha.3 accepts API authentication credentials through URL query string parameters in REST API routes. Attackers with access to web server, proxy, or monitoring logs can recover valid API token pairs that grant full API access.
AnalysisAI
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. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the attacker have read access to web server access logs, reverse proxy logs, CDN request logs, or any monitoring/observability system that stores full HTTP request URLs for the Flextype instance. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N) scores 8.2, with the AT:P (attack requires particular conditions) metric correctly capturing the prerequisite of log access - without which the vulnerability cannot be exploited. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | No vendor-released patch has been identified at time of analysis. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: immediately rotate all Flextype CMS API tokens, audit all web server, proxy, CDN, and monitoring logs for exposed credentials, and restrict log file access to minimum required personnel. …
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External POC / Exploit Code
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