# CVE-2026-124424: WWBN AVideo path traversal in AI plugin receiveAsync.json.php

Source: https://junglewise.ai/threats/cve-2026-124424-wwbn-avideo-contains-a-path-traversal-vulnerability-in-plugin-ai  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-08. Updated: 2026-11-08  
License: CC BY 4.0 with a link back

CVE-2026-124424 · Severity: high · CVSS 7.1 · Published 2026-11-08

WWBN AVideo is a self-hosted video platform that includes an AI plugin for automatic transcription and translation. An attacker with any valid AI token can exploit a path traversal flaw to write malicious .vtt subtitle files to arbitrary locations on the web server, potentially serving malicious content to users or overwriting legitimate subtitle files. This requires only a valid but non-expiring AI token that is easy to obtain.

Technologies: [WWBN AVideo](https://junglewise.ai/threats/technologies/avideo). Vendors: [WWBN](https://junglewise.ai/threats/vendors/wwbn).

## Quick answers

**Is CVE-2026-124424 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-124424 being exploited in the wild.

**How severe is CVE-2026-124424?** High severity, with a CVSS score of 7.1, published 8 November 2026.

**Which products and versions are affected?** WWBN AVideo <= 29.7.0.

**Is there a fix for CVE-2026-124424?** No fixed version is recorded yet. Disable the AI plugin if not in use. Validate the response[lang] parameter against a strict whitelist (e.g. /^[a-z0-9_-]{2,8}$/i) and reject any traversal sequences before file operations, or restrict the web server process to the minimum necessary file write permissions.</anigation>
</invoke> If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-124424 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-124424?** Check whether you run WWBN AVideo at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix


Disable the AI plugin if not in use. Validate the response[lang] parameter against a strict whitelist (e.g. /^[a-z0-9_-]{2,8}$/i) and reject any traversal sequences before file operations, or restrict the web server process to the minimum necessary file write permissions.</anigation>
</invoke>

## Technical details

The vulnerability exists in plugin/AI/receiveAsync.json.php where the user-controlled response[lang] parameter is passed unsanitized into Ai_transcribe_responses::getVTTPaths(), allowing directory traversal sequences (../) to escape the intended videos directory. The endpoint accepts requests from any holder of a valid AI token without expiry validation or ownership checks, and PHP's path resolution lexically processes the traversal sequences, enabling writes to any *.vtt file in locations writable by the web server process (webroot, /tmp, etc.) with fully attacker-controlled content.

## Affected products

- WWBN AVideo <= 29.7.0

## Timeline

- 2026-10-23: disclosed
- 2026-11-08: advisory

## References

- [https://github.com/WWBN/AVideo/security/advisories/GHSA-v64v-r7qm-w5x4](https://github.com/WWBN/AVideo/security/advisories/GHSA-v64v-r7qm-w5x4)
- [https://www.vulncheck.com/advisories/wwbn-avideo-path-traversal-arbitrary-vtt-file-write-via-receiveasync-json-php](https://www.vulncheck.com/advisories/wwbn-avideo-path-traversal-arbitrary-vtt-file-write-via-receiveasync-json-php)

## Related threats

- [WWBN AVideo stored cross-site scripting in channel feed](https://junglewise.ai/threats/cve-2026-126810-wwbn-avideo-29-1-0-through-29-7-1-contains-a-stored-cross-site)
- [WWBN AVideo missing authorization in import and file operations](https://junglewise.ai/threats/cve-2026-126809-wwbn-avideo-through-29-7-1-contains-a-missing-authorization)
- [WWBN AVideo stored cross-site scripting in video download link](https://junglewise.ai/threats/cve-2026-126806-wwbn-avideo-14-3-through-29-7-1-contains-a-stored-cross-site)
- [WWBN AVideo incorrect authorization in encoder endpoints](https://junglewise.ai/threats/cve-2026-126805-wwbn-avideo-through-29-7-1-contains-an-incorrect-authorization)
- [WWBN AVideo path traversal in ADs plugin deleteImage.json.php](https://junglewise.ai/threats/cve-2026-126804-wwbn-avideo-12-4-through-29-7-1-contains-a-path-traversal)