CVE-2023-45364 Information disclosure in n/a

What is CVE-2023-45364?

CVE-2023-45364 is a medium-severity vulnerability in Debian Debian Linux, published on 9 Oct 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An issue was discovered in includes/page/Article.php in MediaWiki 1.36.x through 1.39.x before 1.39.5 and 1.40.x before 1.40.1. Deleted revision existence is leaked due to incorrect permissions being checked. This reveals that a given revision ID belonged to the given page title, and its timestamp, both of which are not supposed to be public information.

Weakness: CWE-732

Which versions are affected by CVE-2023-45364?

1 open source package ship an affected version, including mediawiki. It affects 2 products.

Products include Debian Debian Linux, Mediawiki Mediawiki.

How do I fix CVE-2023-45364?

Upgrade mediawiki to a fixed version for your release line: 1.39.5 or 1.40.1.

Is CVE-2023-45364 being exploited?

There is no known exploitation of CVE-2023-45364 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-mediawiki-2023-45364, DEBIAN-CVE-2023-45364, GHSA-mjh3-fcq9-8g4h, UBUNTU-CVE-2023-45364.