MediaWiki before 1.35.1 blocks legitimate attempts to hide log entries in some situations. If one sets MediaWiki:Mainpage to…

Description

MediaWiki before 1.35.1 blocks legitimate attempts to hide log entries in some situations. If one sets MediaWiki:Mainpage to Special:MyLanguage/Main Page, visits a log entry on Special:Log, and toggles the "Change visibility of selected log entries" checkbox (or a tags checkbox) next to it, there is a redirection to the main page's action=historysubmit (instead of the desired behavior in which a revision-deletion form appears).

Scores

EPSS (exploitation in 30 days)

1.7% · top 22% of all CVEs (6 Nov 2026)

The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

• n/a
• CWE-670 (opens in a new tab)All about CWE-670 and its CVEs

Affected products

• n/a

  • affected n/a

References (5)

• https://phabricator.wikimedia.org/T205908 (opens in a new tab)x_refsource_MISCx_transferred
• https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html (opens in a new tab)x_refsource_MISCx_transferred
• DSA-4816 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
• [debian-lts-announce] 20201223 [SECURITY] [DLA 2504-1] mediawiki security update (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
• FEDORA-2020-0be2d40e13 (opens in a new tab)vendor-advisoryx_refsource_FEDORAx_transferred

Sources

The same CVE in the primary databases and aggregators, to check against.

• CVE.org record (opens in a new tab)
• CVE List JSON (GitHub) (opens in a new tab)
• NVD (opens in a new tab)
• FIRST EPSS (opens in a new tab)
• OSV.dev (opens in a new tab)
• GitHub Advisories (opens in a new tab)
• CIRCL Vulnerability-Lookup (opens in a new tab)

Badge for a README or a ticket

[![CVE-2020-35477](https://trackcve.app/badge/CVE-2020-35477.svg)](https://trackcve.app/cve/CVE-2020-35477)

Record last updated 4 Aug 2024, 17:02 UTC.