{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/products/betheme-theme/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":8.8,"id":"CVE-2026-6261"}],"_cs_exploited":false,"_cs_products":["Betheme theme"],"_cs_severities":["critical"],"_cs_tags":["arbitrary-file-upload","rce","wordpress","betheme"],"_cs_type":"advisory","_cs_vendors":["WordPress"],"content_html":"\u003cp\u003eThe Betheme theme for WordPress, a popular theme used across numerous websites, contains a critical vulnerability (CVE-2026-6261) that allows authenticated attackers to upload arbitrary files. Specifically, versions up to and including 28.4 are affected. This vulnerability resides in the \u003ccode\u003eupload_icons()\u003c/code\u003e function, which inadequately validates files extracted from user-supplied ZIP archives during the icon pack upload process. An attacker with author-level access or higher can exploit this flaw by uploading a ZIP file containing malicious PHP scripts. Successful exploitation leads to remote code execution on the target WordPress server, potentially compromising the entire website and its underlying infrastructure. This vulnerability poses a significant risk to organizations using the Betheme theme for their WordPress deployments.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker obtains author-level or higher access to a WordPress site using the vulnerable Betheme theme.\u003c/li\u003e\n\u003cli\u003eThe attacker navigates to the icon pack upload section within the Betheme theme settings.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a ZIP archive containing a malicious PHP file disguised as an icon or other legitimate file type.\u003c/li\u003e\n\u003cli\u003eThe attacker uploads the malicious ZIP archive using the icon pack upload functionality.\u003c/li\u003e\n\u003cli\u003eThe \u003ccode\u003eupload_icons()\u003c/code\u003e function moves and unzips the archive into a publicly accessible uploads directory without proper file type validation.\u003c/li\u003e\n\u003cli\u003eThe malicious PHP file is extracted and stored within the uploads directory.\u003c/li\u003e\n\u003cli\u003eThe attacker accesses the uploaded PHP file via a direct HTTP request to the file\u0026rsquo;s location.\u003c/li\u003e\n\u003cli\u003eThe server executes the malicious PHP code, granting the attacker remote code execution capabilities.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability allows an attacker to execute arbitrary code on the WordPress server. This can lead to complete compromise of the website, including data theft, defacement, or further exploitation of the underlying server infrastructure. Given the Betheme theme\u0026rsquo;s popularity, a large number of websites are potentially vulnerable. The impact ranges from data breaches and financial loss to reputational damage for affected organizations.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade the Betheme theme to a version greater than 28.4 to patch CVE-2026-6261.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules provided below to your SIEM to detect potential exploitation attempts.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs (category \u003ccode\u003ewebserver\u003c/code\u003e, product \u003ccode\u003elinux\u003c/code\u003e) for suspicious requests to the \u003ccode\u003e/wp-content/uploads/\u003c/code\u003e directory, especially for PHP files.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2024-01-03T12:00:00Z","date_published":"2024-01-03T12:00:00Z","id":"/briefs/2024-01-betheme-file-upload/","summary":"The Betheme theme for WordPress is vulnerable to arbitrary file upload, allowing authenticated attackers with author-level privileges or higher to upload arbitrary files, including PHP, leading to remote code execution.","title":"Betheme WordPress Theme Arbitrary File Upload Vulnerability","url":"https://feed.craftedsignal.io/briefs/2024-01-betheme-file-upload/"}],"language":"en","title":"CraftedSignal Threat Feed — Betheme Theme","version":"https://jsonfeed.org/version/1.1"}