WWBN AVideo has a Path Traversal in Locale Save Endpoint that Enables Arbitrary PHP File Write to Any Web-Accessible Directory (RCE)
Published Apr 21, 2026
8.7
HIGHCVSS 3.1
EPSS 0.82%
Description
WWBN AVideo is an open source video platform. In versions 29.0 and prior, the locale save endpoint (`locale/save.php`) constructs a file path by directly concatenating `$_POST['flag']` into the path at line 30 without any sanitization. The `$_POST['code']` parameter is then written verbatim to that path via `fwrite()` at line 40. An admin attacker (or any user who can CSRF an admin, since no CSRF token is checked and cookies use `SameSite=None`) can traverse out of the `locale/` directory and write arbitrary `.php` files to any writable location on the filesystem, achieving Remote Code Execution. Commit 57f89ffbc27d37c9d9dd727212334846e78ac21a fixes the issue.
Affected products
-
Affected
- ≤ 29.0
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (5)
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-24288 Advisory
- https://github.com/WWBN/AVideo/commit/57f89ffbc27d37c9d9dd727212334846e78ac21a x_refsource_MISCPatch
- https://github.com/WWBN/AVideo/security/advisories/GHSA-6rc6-p838-686f exploitx_refsource_CONFIRMVendor Advisory
- https://github.com/advisories/GHSA-6rc6-p838-686f Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-40909
| Link | Providers | Tags |
|---|---|---|
| https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-24288 | Advisory | |
| https://github.com/WWBN/AVideo/commit/57f89ffbc27d37c9d9dd727212334846e78ac21a | x_refsource_MISCPatch | |
| https://github.com/WWBN/AVideo/security/advisories/GHSA-6rc6-p838-686f | exploitx_refsource_CONFIRMVendor Advisory | |
| https://github.com/advisories/GHSA-6rc6-p838-686f | Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2026-40909 |
Change history (0)
No recorded changes yet.
CVE.org / MITRE
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Red Hat
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