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.

Published 2026-09-11 · last modified 2026-09-11.

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.

EPSS exploit prediction

EPSS: 0.002 (14.3th percentile), scored 2026-10-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 14th percentile — 14.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Wwbn Avideo

Weakness classification (CWE)

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

References

github.com/WWBN/AVideo/security/advisories/GHSA-766f-9gfh-v4wj (vendor-advisory)
www.vulncheck.com/advisories/wwbn-avideo-csv-formula-injection-via-mycomments-d… (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.