What’s Vulnerable › Vulnerabilities
CVE-2026-77138: Remote Code Execution in extension "HTML5 Video Player vs. Powermail" (html5videoplayer_powermail)
- Severity: critical (CVSS 9.3 v4.0)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.7% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-25 · updated 2026-09-28
- Weakness: CWE-502
Description
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.
Affected products
- TYPO3 Extension "HTML5 Video Player vs. Powermail": through 0.2.1
References
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