CVE-2026-100381CWE-79cross-site-scripting

CVE-2026-100381

published September 26, 2026

CVSS
5.3
EPSS
0%
Percentile
24.9
In the wild
Unconfirmed
What it is

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation Mediawiki - UploadWizard Extension allows Cross-Site Scripting (XSS).

This issue affects Mediawiki - UploadWizard Extension: from * before 1.46.1, 1.45.5, 1.43.10.

The record
Technical detail
CVSS
5.3 · NONE
CVSS v4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
EPSS
0.00330 · 24.9th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-26T02:17Z
References (2)
https://gerrit.wikimedia.org/r/q/Iba914c0d7e86f9342ee9cecde3bee0806ec90c84 · c4f26cc8-17ff-4c99-b5e2-38fc1793eacchttps://phabricator.wikimedia.org/T434619 · c4f26cc8-17ff-4c99-b5e2-38fc1793eacc
EPSS history
Timeline
  • 27 SEP 03:24Z
    EPSS moved — → 0%
    epss
  • 25 SEP 21:00Z
    UploadWizard Flickr collection and set titles allow DOM XSS
    cvelistv5