# CVE-2026-89246

## Summary

- **CVE ID:** CVE-2026-89246
- **Severity:** MEDIUM
- **CVSS Score:** 5.4 (CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N)
- **CWE:** CWE-1236
- **Published:** Sep 11, 2026
- **Last Modified:** Sep 11, 2026

## 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.

## Affected Products

- WWBN — AVideo (0)

## References

- [CNA](https://github.com/WWBN/AVideo/security/advisories/GHSA-766f-9gfh-v4wj)
- [CNA](https://www.vulncheck.com/advisories/wwbn-avideo-csv-formula-injection-via-mycomments-download-php)

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._