CVE-2026-77134: Broken Access Control in extension "femanager" (femanager)
Vulnerability summary
CVE-2026-77134 is a high (CVSS 8.3) Incorrect Authorization vulnerability in typo3 extension "femanager". EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 34.8% of scored vulnerabilities.
Severe, CVSS 8.3 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 25-08-2026PublishedVulnerability first disclosed.
- 25-08-2026Last modifiedVulnerability information updated.
Description
The extension fails to require the dedicated admin confirmation token when processing an admin-approval request, so a regular user confirmation hash, obtainable by any visitor through the public resend-confirmation action, is sufficient to self-approve a pending account awaiting admin approval.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST8.3HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/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
EPSS trend
Probability
0.41%
Chance of exploitation in the next 30 days
Percentile
35%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.41% on 04-10-2026
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Typo31 product
- extension "femanager"≥ 13.0.0, < 13.3.5 | ≥ 8.0.0, < 8.4.2 | ≥ 7.0.0, < 7.5.5 | < 6.4.5
1 vendor · 1 product
References
1 links- typo3.org/security/advisory/typo3-ext-sa-2026-024Vendor Advisory