CVE-2026-33717HIGH 8.8EPSS p31.2%

CVE-2026-33717CVE-2026-33717

Description

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the `downloadVideoFromDownloadURL()` function in `objects/aVideoEncoder.json.php` saves remote content to a web-accessible temporary directory using the original URL's filename and extension (including `.php`). By providing an invalid `resolution` parameter, an attacker triggers an early `die()` via `forbiddenPage()` before the temp file can be moved or cleaned up, leaving an executable PHP file persistently accessible under the web root at `videos/cache/tmpFile/`. Commit 6da79b43484099a0b660d1544a63c07b633ed3a2 contains a patch.

Scoring

CVSS 3.18.8 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS0.40% probability of exploitation · percentile 31.2% · 2026-06-19T12:03:05Z
Published2026-03-23
Last modified2026-03-25

Underlying weaknesses· 1

CWE-434

References

  1. https://github.com/WWBN/AVideo/commit/6da79b43484099a0b660d1544a63c07b633ed3a2
  2. https://github.com/WWBN/AVideo/security/advisories/GHSA-8wf4-c4x3-h952

1

TypeTargetConfidenceTier
WeaknessUnrestricted Upload of File with Dangerous Typecwe-4340%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.