{"id":86578,"date":"2026-03-01T03:27:56","date_gmt":"2026-03-01T03:27:56","guid":{"rendered":""},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-30T00:00:00","slug":"cve-2025-53481-uncontrolled-resource-consumption-vulnerability-in-wikimedia-foundation-mediawiki-ipinfo-extension","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-53481-uncontrolled-resource-consumption-vulnerability-in-wikimedia-foundation-mediawiki-ipinfo-extension\/","title":{"rendered":"CVE-2025-53481: Uncontrolled Resource Consumption Vulnerability in Wikimedia Foundation Mediawiki IPInfo Extension<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

The CVE-2025-53481 pertains to a severe uncontrolled resource consumption flaw found in the IPInfo Extension of Wikimedia Foundation’s Mediawiki. This vulnerability opens up the potential for system compromise and data leakage. Given the widespread use of Mediawiki across various platforms, it is crucial to address this vulnerability promptly.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-53481
\nSeverity: High (7.5 CVSS Score)
\nAttack Vector: Network
\nPrivileges Required: None
\nUser Interaction: None
\nImpact: Potential system compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Mediawiki – IPInfo Extension | 1.39.X before 1.39.13
\nMediawiki – IPInfo Extension | 1.42.X before 1.42.7
\nMediawiki – IPInfo Extension | 1.43.X before 1.43.2<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The uncontrolled resource consumption vulnerability in the IPInfo extension of Mediawiki allows attackers to cause excessive resource allocation. This is achieved by sending specially crafted requests to the vulnerable application, which subsequently leads to the overconsumption of system resources. If left unchecked, this could lead to a denial of service state, potential system compromise, or data leakage.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here is a conceptual example of how the vulnerability might be exploited. In this case, a malicious actor could send a HTTP request with a crafted payload that exploits the vulnerability:<\/p>\n

POST \/mediawiki\/ipinfo\/ HTTP\/1.1\nHost: target.example.com\nContent-Type: application\/json\n{\n\"ipinfo_request\": \"8.8.8.8\",\n\"excessive_allocation\": \"1\"*10000000\n}<\/code><\/pre>\n
In the above example, the “excessive_allocation” field is filled with a large string, leading to excessive resource allocation. Ensure to patch this vulnerability or use a WAF\/IDS as temporary mitigation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The CVE-2025-53481 pertains to a severe uncontrolled resource consumption flaw found in the IPInfo Extension of Wikimedia Foundation’s Mediawiki. This vulnerability opens up the potential for system compromise and data leakage. Given the widespread use of Mediawiki across various platforms, it is crucial to address this vulnerability promptly. Vulnerability Summary CVE ID: CVE-2025-53481 Severity: […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-86578","post","type-post","status-publish","format-standard","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t