by Kastro
Paper/Archive/CVE-2026-89254

CVE-2026-89254

WWBN AVideo — AVideo CustomizeUser Stored XSS via field_name Parameter

EPSS 0.4%CVSS 9.3
critical.is priorityof 100
34
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 30.5.305 × 206.1No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the CustomizeUser plugin where the field_name parameter is stored raw without sanitization. Administrators can inject malicious scripts via the add.json.php endpoint that execute when viewing extra info pages or profile forms that render the typeToHTML function.

Affected

ProductAffectedFixed inSource
AVideo≤ c3edcc274c389816d434acadac07ee78eaf330c1–CNA

Scores by source

VulnCheck (CNA)9.3CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N
VulnCheck (CNA)8.7CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

advisorygithub.com/WWBN/AVideo/security/advisories/GHSA-7hj4-f9x4-gg7pwriteupvulncheck.com/advisories/avideo-customizeuser-stored-xss-via-field-name-parameter