CVE-2026-39840CWE-79

CSS injection in multiple Cargo display formats

Medium · published April 7, 2026

CVSS v4.0
5.1
EPSS
0%
Percentile
14.2
In the wild
Unconfirmed
What it is

Improper neutralization of input during web page generation ('cross-site scripting') vulnerability in Wikimedia Foundation Mediawiki - Cargo Extension allows XSS Targeting Non-Script Elements.This issue affects Mediawiki - Cargo Extension: before 3.8.7.

The record
Technical detail
CVSS v4.0
5.1 · MEDIUM
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N
EPSS
0.00240 · 14.2th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-04-07T19:35Z
EPSS history
Timeline
  • 07 APR 19:35Z
    CSS injection in multiple Cargo display formats
    cvelistv5