{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/products/xerte-online-toolkits--3.15/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[{"cvss":7.1,"id":"CVE-2026-34414"}],"_cs_exploited":false,"_cs_products":["Xerte Online Toolkits (\u003c= 3.15)"],"_cs_severities":["critical"],"_cs_tags":["path-traversal","remote-code-execution","xss"],"_cs_type":"advisory","_cs_vendors":["Xerte"],"content_html":"\u003cp\u003eXerte Online Toolkits, a tool used to create online learning materials, is vulnerable to a path traversal vulnerability (CVE-2026-34414) in versions 3.15 and earlier. The vulnerability exists in the elFinder connector endpoint at \u003ccode\u003e/editor/elfinder/php/connector.php\u003c/code\u003e. The \u003ccode\u003ename\u003c/code\u003e parameter within rename commands is not properly sanitized, allowing attackers to use directory traversal sequences (e.g., \u003ccode\u003e../\u003c/code\u003e) to manipulate file locations. This flaw can be exploited to overwrite application files, inject stored cross-site scripting (XSS), or, when combined with other vulnerabilities, achieve unauthenticated remote code execution (RCE). This poses a significant threat to organizations utilizing affected versions of Xerte Online Toolkits, potentially leading to data breaches, system compromise, and reputational damage.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker identifies a vulnerable Xerte Online Toolkits instance running version 3.15 or earlier.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious HTTP request to \u003ccode\u003e/editor/elfinder/php/connector.php\u003c/code\u003e targeting the rename command.\u003c/li\u003e\n\u003cli\u003eWithin the request, the \u003ccode\u003ename\u003c/code\u003e parameter contains directory traversal sequences (e.g., \u003ccode\u003e../../\u003c/code\u003e) and the desired destination path.\u003c/li\u003e\n\u003cli\u003eThe server, due to insufficient input validation, processes the request without properly sanitizing the \u003ccode\u003ename\u003c/code\u003e parameter.\u003c/li\u003e\n\u003cli\u003eThe attacker moves a file (e.g., an uploaded image or media file) from its original project media directory to a new location specified within the malicious \u003ccode\u003ename\u003c/code\u003e parameter. This could involve moving a file to the application root directory.\u003c/li\u003e\n\u003cli\u003eIf the attacker moves a specifically crafted PHP file to the application root and the webserver is configured to execute PHP files in the root, the attacker can then access this file via a web request.\u003c/li\u003e\n\u003cli\u003eThe attacker executes arbitrary code on the server.\u003c/li\u003e\n\u003cli\u003eThe attacker gains complete control of the Xerte Online Toolkits instance and potentially the underlying server.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability can lead to several critical consequences. Attackers can overwrite sensitive application files, leading to denial of service or system instability. The injection of malicious JavaScript code can result in stored cross-site scripting (XSS) attacks, compromising user accounts and data. The most severe outcome is unauthenticated remote code execution (RCE), enabling attackers to gain complete control over the affected server, potentially leading to data breaches, malware deployment, and further lateral movement within the network. The CVSS v3.1 base score for this vulnerability is 7.1, indicating a high level of risk.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade Xerte Online Toolkits to a version greater than 3.15 to patch CVE-2026-34414.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u003ccode\u003eDetect Suspicious Path Traversal in Xerte Connector\u003c/code\u003e to identify attempted exploitation of the path traversal vulnerability by monitoring requests to \u003ccode\u003e/editor/elfinder/php/connector.php\u003c/code\u003e with directory traversal sequences.\u003c/li\u003e\n\u003cli\u003eImplement input validation and sanitization on the \u003ccode\u003ename\u003c/code\u003e parameter within the elFinder connector to prevent path traversal attacks.\u003c/li\u003e\n\u003cli\u003eReview web server configurations to prevent the execution of PHP files from the web root directory.\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-xerte-path-traversal/","summary":"Xerte Online Toolkits 3.15 and earlier are vulnerable to relative path traversal, allowing attackers to move files and potentially achieve remote code execution.","title":"Xerte Online Toolkits Path Traversal Vulnerability","url":"https://feed.craftedsignal.io/briefs/2024-01-xerte-path-traversal/"}],"language":"en","title":"CraftedSignal Threat Feed — Xerte Online Toolkits (\u003c= 3.15)","version":"https://jsonfeed.org/version/1.1"}