CVE-2025-32698 is a vulnerability classified under CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor) affecting the MediaWiki software maintained by the Wikimedia Foundation. The issue resides in the includes/logging/LogPager.php component, which is responsible for handling log data pagination and display. Versions prior to 1.39.12, 1.42.6, and 1.43.1 are vulnerable. The vulnerability allows an attacker who can send network requests and induce user interaction to access sensitive information that should otherwise be restricted. The CVSS 4.0 base score is 2.1, indicating low severity, with the vector showing network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:N), but user interaction is needed (UI:A). The impact is limited to confidentiality (VC:L), with no impact on integrity or availability. No known exploits have been reported in the wild, and no patches were linked in the provided data, but the affected versions suggest that fixed releases are available. The vulnerability does not require authentication, but user interaction is necessary, which reduces the likelihood of exploitation. The exposure of sensitive information could include log details or metadata that might aid attackers in reconnaissance or social engineering. However, the limited scope and low impact reduce the overall risk. Organizations running MediaWiki instances, especially those exposing logs or administrative interfaces, should prioritize upgrading to the fixed versions to eliminate this information leakage vector.

For European organizations, the primary impact of CVE-2025-32698 is the potential unauthorized disclosure of sensitive information contained within MediaWiki logs or related components. This could lead to minor confidentiality breaches, potentially exposing internal operational details or user activity logs. While the vulnerability does not affect data integrity or system availability, the leaked information could be leveraged by attackers for further targeted attacks, social engineering, or reconnaissance. Organizations that use MediaWiki for internal documentation, knowledge bases, or public-facing wikis containing sensitive or proprietary information are at higher risk. The low severity and requirement for user interaction limit the threat, but in sectors such as government, education, and research—where MediaWiki is commonly deployed—any information leakage can have reputational or compliance implications. Additionally, organizations subject to GDPR must consider the exposure of personal data and ensure timely remediation to avoid regulatory penalties.

1. Upgrade MediaWiki instances to versions 1.39.12, 1.42.6, 1.43.1 or later, as these contain fixes for the vulnerability. 2. Review and restrict access to the includes/logging/LogPager.php and related log viewing functionalities, ensuring only authorized users can access sensitive logs. 3. Implement strict network segmentation and firewall rules to limit external access to MediaWiki administrative and logging interfaces. 4. Monitor user activity and logs for unusual access patterns that may indicate attempts to exploit this vulnerability. 5. Educate users about the risks of interacting with unsolicited links or requests that could trigger the vulnerability. 6. Regularly audit MediaWiki configurations and installed extensions to minimize exposure of sensitive information. 7. If immediate patching is not feasible, consider disabling or restricting logging features that expose sensitive data until an update can be applied.