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.
Metrics
Affected Vendors & Products
References
| Link | Providers |
|---|---|
| https://typo3.org/security/advisory/typo3-ext-sa-2026-014 |
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History
Tue, 25 Aug 2026 14:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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Tue, 25 Aug 2026 09:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Remote Code Execution in extension "HTML5 Video Player vs. Powermail" (html5videoplayer_powermail) | |
| Weaknesses | CWE-502 | |
| References |
| |
| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: TYPO3
Published:
Updated: 2026-08-25T14:05:40.648Z
Reserved: 2026-08-20T13:10:15.962Z
Link: CVE-2026-77138
Updated: 2026-08-25T14:05:01.033Z
Status : Received
Published: 2026-08-25T09:17:34.497
Modified: 2026-08-25T14:16:54.770
Link: CVE-2026-77138
No data.
OpenCVE Enrichment
Updated: 2026-08-25T10:45:03Z