CVE-2026-0670: Wikisource Proofread Page

Medium severity, CVSS 6.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - ProofreadPage Extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - ProofreadPage Extension: 1.45, 1.44, 1.43, 1.39.

Affected products

• Wikisource Proofread Page: version 1.39 only; version 1.43 only; version 1.44 only; version 1.45 only

Published 2026-01-07. Last modified 2026-06-17.