CVE-2026-77140Broken Access Control in extension "Telephone Directory" (telephonedirectory)
Updated under an hour ago ()
Does this affect you?
It affects TYPO3 Extension "Telephone Directory". Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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The extension validates the HMAC of a frontend employee edit link only in the action that renders the edit form, not in the action that persists the change. An unauthenticated visitor who knows the UID of a visible employee record can send a direct POST request to the update action and overwrite that record without a valid edit link or any ownership check.
- CVSS
- 8.7 HIGH (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-862, CWE-639
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- TYPO3
- NVD analysis
- Deferred
- Record last updated
- Aug 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TYPO3 Extension "Telephone Directory" typo3:extension_telephone_directory (from the name) | from 6.0.0 before 6.2.0; from 5.0.0 before 5.0.1; before 4.1.1 | CNA record |
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-018vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.