CVE-2026-88867
WWBN AVideo, up to a specific commit, has a stored cross‑site scripting flaw that lets logged‑in users inject JavaScript into category names. The script runs in the browsers of anyone who views a video or gallery entry that uses the malicious category, including administrators.
No official fix yet. If none appears within 45 days of first tracking, this entry is removed automatically.
Who is affected
WWBN AVideo versions up to commit c3edcc274c389816d434acadac07ee78eaf330c1. Any authenticated user with canUpload permission when the usersCanCreateNewCategories option is enabled can create a malicious category.
Real-world impact
An attacker can embed JavaScript that executes in the victim’s browser, allowing the attacker to perform actions such as sending authenticated requests on the victim’s behalf or stealing session data.
Why this severity
The CVSS score of 9.3 reflects a low attack complexity, no user interaction required, and high impact on confidentiality, integrity, and availability. The vulnerability allows an attacker to run arbitrary code in the victim’s browser, which can lead to full account compromise.
What to do about it
- ›Disable the usersCanCreateNewCategories option or restrict canUpload permission so that only trusted users can create categories
No official fix or mitigation is documented in the sources yet. Monitor the vendor advisory and apply the patch as soon as it is released.
NVD description