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Exposure of Sensitive Information to an Unauthorized Actor


Severity High
Score 7.5/10


Wikimedia MediaWiki through 1.27.5, 1.28.x through 1.30.1, 1.31.x through 1.31.1, and 1.32.x through 1.32.1, has an information leak. Privileged API responses that include whether a recent change has been patrolled may be cached publicly. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.

  • LOW
  • NONE
  • NONE
  • NONE
  • HIGH
  • NONE

CWE-200 - Information Exposure

An information exposure vulnerability is categorized as an information flow (IF) weakness, which can potentially allow unauthorized access to otherwise classified information in the application, such as confidential personal information (demographics, financials, health records, etc.), business secrets, and the application's internal environment.


Advisory Timeline

  • Published