CSV Formula Injection Vulnerability in WWBN AVideo
CVE-2026-89246

5.1MEDIUM

Key Information:

Vendor

Wwbn

Status
Avideo
Vendor
CVE Published:
11 September 2026

What is CVE-2026-89246?

WWBN AVideo contains a vulnerability within the myComments.download.php endpoint that allows authenticated users to exploit CSV files by injecting executable spreadsheet formulas. This occurs because the system fails to properly sanitize prefixes used in spreadsheet formulas, such as =, +, -, or @. When the CSV file is opened in spreadsheet applications by administrators or video owners, these injected formulas get executed, potentially leading to unintended actions and data exposure.

Affected Version(s)

AVideo 0

References

https://github.com/WWBN/AVideo/security/advisories/GHSA-7...
vendor-advisory
https://www.vulncheck.com/advisories/wwbn-avideo-csv-form...
third-party-advisory

CVSS V4

Score:
5.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

santhreal
.