What is CVE-2026-89246?

CVE-2026-89246 is a medium-severity vulnerability in Wwbn Avideo, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 5.4/10. Published 2026-09-11.

How severe is CVE-2026-89246?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Vulnerability in Wwbn Avideo

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.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Wwbn Avideo

Weakness classification (CWE)

CWE-1236 — Improper Neutralization of Formula Elements in a CSV File

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-89246?: CVE-2026-89246 is a medium-severity vulnerability in Wwbn Avideo, classified under Improper Neutralization of Formula Elements in a CSV File. CVSS score: 5.4/10. Published 2026-09-11.
How severe is CVE-2026-89246?: Medium severity. CVSS v3 base score is 5.4 out of 10.