# CVE-2023-45364: mediawiki: 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 befo...

CVE-2023-45364 is fixed in mediawiki on 1 platform, first by DEBIAN-CVE-2023-45364, released October 9, 2023. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2023-45364
- Priority: Routine
- CVSS: 5.3 (medium)
- EPSS: 0.0050
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 9, 2023

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | mediawiki Debian 12.15 (bookworm) | 1:1.39.5-1~deb12u1 | [DEBIAN-CVE-2023-45364](https://patchblox.com/security/data/fix/linux/debian-cve-2023-45364.md) | Oct 9, 2023 |
| Linux | mediawiki Debian 13.5 (trixie) | 1:1.39.5-1 | [DEBIAN-CVE-2023-45364](https://patchblox.com/security/data/fix/linux/debian-cve-2023-45364.md) | Oct 9, 2023 |
| Linux | mediawiki Debian 14 | 1:1.39.5-1 | [DEBIAN-CVE-2023-45364](https://patchblox.com/security/data/fix/linux/debian-cve-2023-45364.md) | Oct 9, 2023 |

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