CVE-2026-100382CWE-78command-injection

CVE-2026-100382

published September 26, 2026

CVSS
10.0
EPSS
1%
Percentile
60.8
In the wild
Unconfirmed
What it is

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') vulnerability in Wikimedia Foundation Mediawiki - ExternalData Extension allows OS Command Injection.

This issue affects Mediawiki - ExternalData Extension: from * before 3.7.

The record
Technical detail
CVSS
10.0 · NONE
CVSS v4.0
10.0 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
EPSS
0.00947 · 60.8th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-09-26T02:17Z
References (2)
https://gerrit.wikimedia.org/r/c/mediawiki/extensions/ExternalData/+/1326012 · c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://phabricator.wikimedia.org/T434961 · c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
EPSS history
Timeline
  • 27 SEP 03:24Z
    EPSS moved — → 1%
    epss
  • 25 SEP 21:04Z
    Unauthenticated remote code execution through wikitext in ExternalData
    cvelistv5