CVE-2026-0671

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: 1.45, 1.44, 1.43, 1.39.

CVSS 3.1

6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS

0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-26)

CWE

CWE-79

Published

2026-01-08

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• wikimedia:mediawiki-extensions-uploadwizard

References

• https://gerrit.wikimedia.org/r/q/I16de2211594ea9a686868ad7789f9879bf981fa1
• https://phabricator.wikimedia.org/T407157

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