Is CVE-2026-89246 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-89246?

CVE-2026-89246 has a CVSS v3 severity of MEDIUM (5.4).

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CVE-2026-89246

Description

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.