CVE-2026-89246CWE-1236

CVE-2026-89246

Medium · published September 11, 2026

CVSS v3.1
5.4
EPSS
0%
Percentile
13.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.4 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
5.1 · 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
EPSS
0.00235 · 13.6th percentile
Weakness
CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
Published
2026-09-11T16:16Z
References (3)
https://github.com/WWBN/AVideo/security/advisories/GHSA-766f-9gfh-v4wj · [email protected]https://www.vulncheck.com/advisories/wwbn-avideo-csv-formula-injection-via-mycomments-download-php · [email protected]https://github.com/WWBN/AVideo/security/advisories/GHSA-766f-9gfh-v4wj · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 13 SEP 03:23Z
    EPSS moved — → 0%
    epss
  • 11 SEP 11:15Z
    WWBN AVideo CSV Formula Injection via myComments.download.php
    cvelistv5