Information Exposure The advisory has been revoked - it doesn't affect any version of package mediawiki/core (opens in a new tab)
Threat Intelligence
Exploit maturity not defined.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-PHP-MEDIAWIKICORE-5406303
- published2 Apr 2023
- disclosed2 Apr 2023
- creditUnknown
Introduced: 2 Apr 2023
CVE-2023-29137 (opens in a new tab)How to fix?
A fix was pushed into the master branch but not yet published.
Amendment
This was deemed not a vulnerability.
Overview
mediawiki/core is a Free software wiki application developed by the Wikimedia Foundation and others.
Note: This package is not maintained on Packagist anymore, but newer releases exist.
Affected versions of this package are vulnerable to Information Exposure. The UserImpactHandler for GrowthExperiments returns the timezone preference for arbitrary users, which can be used to de-anonymize users.