CVE-2026-89246

WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a CSV formula injection vulnerability in the myComments.download.php endpoint that fails to sanitize spreadsheet formula prefixes in comment text. Authenticated users can inject formulas starting with =, +, -, or @ characters that execute when administrators or video owners open the exported CSV file in spreadsheet applications.

  • Published Sep 11, 2026
  • CVSS 5.1 medium
  • 0.2% chance of exploitation in the next 30 days (EPSS)

Affected software

CVE-2026-89246 at the National Vulnerability Database