CVE-2023-36675: XSS

Published Jun 26, 2023
·
Updated

An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, and 1.39.x before 1.39.4. BlockLogFormatter.php in BlockLogFormatter allows XSS in the partial blocks feature.

Affected Software

4 affected componentsFixes available
debian/mediawiki
1:1.31.16-1+deb10u21:1.31.16-1+deb10u61:1.35.11-1~deb11u11:1.35.13-1~deb11u11:1.39.4-1~deb12u11:1.39.5-1~deb12u11:1.39.5-1
MediaWiki MediaWiki<1.35.11
MediaWiki MediaWiki>=1.36.0<1.38.7
MediaWiki MediaWiki>=1.39.0<1.39.4

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade debian/mediawiki to a version that resolves this vulnerability.

    Fixed in 1:1.31.16-1+deb10u2Fixed in 1:1.31.16-1+deb10u6Fixed in 1:1.35.11-1~deb11u1Fixed in 1:1.35.13-1~deb11u1Fixed in 1:1.39.4-1~deb12u1Fixed in 1:1.39.5-1~deb12u1Fixed in 1:1.39.5-1

Event History

Jun 26, 2023
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
Description
Data Sourced
via NVD·01:15 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is CVE-2023-36675?

CVE-2023-36675 is a vulnerability in MediaWiki that allows for XSS (cross-site scripting) attacks in the partial blocks feature.

2

How severe is CVE-2023-36675?

CVE-2023-36675 has a severity rating of 6.1, which is considered medium.

3

What versions of MediaWiki are affected by CVE-2023-36675?

CVE-2023-36675 affects MediaWiki versions 1.31.16-1+deb10u2, 1.31.16-1+deb10u6, 1.35.11-1~deb11u1, 1.39.4-1~deb12u1, and 1.39.4-2.

4

How can I fix CVE-2023-36675?

To fix CVE-2023-36675, you should upgrade to MediaWiki version 1.35.11 or apply the recommended patches provided by the vendor.

5

Where can I find more information about CVE-2023-36675?

More information about CVE-2023-36675 can be found on the Gerrit Wikimedia, Phabricator Wikimedia, and the Debian Security Tracker websites.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203