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Exposure of Sensitive Information to an Unauthorized Actor


Severity High
Score 7.5/10


MediaWiki through 1.23.15, and 1.24.0-rc.0 though 1.27.1 allows remote attackers to discover the IP addresses of Wiki visitors via a style="background-image: attr(title url);" attack within a DIV element that has an attacker-controlled URL in the title attribute.

  • 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