CVE-2026-77138Remote Code Execution in extension "HTML5 Video Player vs. Powermail" (html5videoplayer_powermail)
Updated under an hour ago ()
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It affects TYPO3 Extension "HTML5 Video Player vs. Powermail". 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 fails to safely process untrusted client input of an attacker-controlled cookie directly to PHP's unserialize(). A remote, unauthenticated attacker can supply a crafted serialized payload to trigger PHP Object Injection, leading to Remote Code Execution on the TYPO3 server.
- CVSS
- 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Weakness (CWE)
- CWE-502
- 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 25, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
TYPO3 Extension "HTML5 Video Player vs. Powermail" typo3:extension_html5_video_player_vs_powermail (from the name) | through 0.2.1 | CNA record |
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-014vendor-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.