{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/products/wikibase-repository/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":["cpe:2.3:a:wikimedia:wikibase:*:*:*:*:*:*:*:*"],"_cs_cves":[{"id":"CVE-2026-103441"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Wikibase Repository"],"_cs_severities":["high"],"_cs_tags":[],"_cs_type":"advisory","_cs_vendors":["Wikimedia"],"content_html":"\u003cp\u003eCVE-2026-103441 is an object injection vulnerability affecting the Wikibase Repository action=parse API. The flaw stems from the API accepting PHP-serialized entities without sufficient validation. This allows attackers to trigger a Smarty destructor that performs unauthorized file operations. In configurations where PHP gadget chains are present, this primitive can be leveraged to achieve remote code execution. The vulnerability requires a low-privilege account to perform the injection via the request body.\u003c/p\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation allows for remote code execution under the context of the web server user. The vulnerability has been assigned a CVSS score of 8.7 (High).\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePrioritize identification of Wikibase installations within the environment.\u003c/li\u003e\n\u003cli\u003eAudit web application logs for POST requests to api.php targeting action=parse that contain serialized PHP structures.\u003c/li\u003e\n\u003cli\u003eApply patches released via the official Wikibase Gerrit repository to remediate the API handling of serialized objects.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-10-23T17:43:59Z","date_published":"2026-10-23T17:43:59Z","id":"https://feed.craftedsignal.io/briefs/2026-10-wikibase-rce/","summary":"An object injection vulnerability in the Wikibase action=parse API enables attackers with low-privilege access to achieve remote code execution via serialized PHP entities.","title":"Wikibase: Remote Code Execution via Object Injection (CVE-2026-103441)","url":"https://feed.craftedsignal.io/briefs/2026-10-wikibase-rce/"}],"language":"en","title":"CraftedSignal Threat Feed - Wikibase Repository","version":"https://jsonfeed.org/version/1.1"}