{"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/mdjm-event-management-plugin--1.7.8.3/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":7.2,"id":"CVE-2026-7537"}],"_cs_exploited":false,"_cs_has_poc":true,"_cs_poc_references":["https://sploitus.com/exploit?id=KITPLOIT:TOOLS-GITHUB-D0N601-CVE-2026-7537\u0026utm_source=rss\u0026utm_medium=rss"],"_cs_products":["MDJM Event Management plugin (\u003c= 1.7.8.3)"],"_cs_severities":["high"],"_cs_tags":["wordpress","plugin","rce","file-upload","cve","webserver"],"_cs_type":"advisory","_cs_vendors":["MDJM","WordPress"],"content_html":"\u003cp\u003eA critical vulnerability, CVE-2026-7537, has been identified in the MDJM Event Management plugin for WordPress, affecting all versions up to and including 1.7.8.3. This flaw, classified as an Arbitrary File Upload (CWE-434), resides within the \u003ccode\u003emdjm_send_comm_email\u003c/code\u003e function. The vulnerability stems from an absence of proper file type, extension, or MIME type validation on uploaded files, allowing authenticated attackers with administrator-level access or higher to upload executable content. Successful exploitation leads directly to remote code execution on the underlying server hosting the WordPress instance. This vulnerability poses a significant risk to organizations using the affected plugin, as it can result in full server compromise, data exfiltration, or further network penetration.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn attacker obtains administrator-level credentials for a WordPress instance running the vulnerable MDJM Event Management plugin.\u003c/li\u003e\n\u003cli\u003eThe attacker logs into the WordPress administrative dashboard with the compromised credentials.\u003c/li\u003e\n\u003cli\u003eThe attacker prepares a malicious file, such as a PHP web shell, designed to execute arbitrary commands.\u003c/li\u003e\n\u003cli\u003eThe attacker navigates to the plugin's interface where the \u003ccode\u003emdjm_send_comm_email\u003c/code\u003e function is triggered, likely via an AJAX call to \u003ccode\u003ewp-admin/admin-ajax.php\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eThe malicious file is uploaded through the vulnerable function, bypassing all file type and MIME validation checks due to the flaw.\u003c/li\u003e\n\u003cli\u003eThe web server processes and stores the executable malicious file in a publicly accessible directory, typically within \u003ccode\u003ewp-content/uploads/\u003c/code\u003e or a plugin-specific folder.\u003c/li\u003e\n\u003cli\u003eThe attacker accesses the newly uploaded web shell via a direct HTTP request (e.g., GET request), executing arbitrary commands on the server.\u003c/li\u003e\n\u003cli\u003eRemote Code Execution is achieved, providing the attacker with control over the WordPress instance and the underlying server.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-7537 can lead to severe consequences for affected organizations. The primary impact is remote code execution, granting attackers full control over the compromised WordPress server. This allows for data exfiltration from the web server and database, defacement of the website, injection of malicious content, and establishment of persistent access. Attackers can also use the compromised server as a staging ground for further attacks against internal networks. The administrative access requirement limits the immediate scope but increases the severity for organizations whose admin credentials are stolen or weak.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately update the MDJM Event Management plugin to a patched version beyond 1.7.8.3.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rules provided in this brief to your SIEM to detect exploitation attempts.\u003c/li\u003e\n\u003cli\u003eImplement web application firewall (WAF) rules to block suspicious file uploads, specifically requests to \u003ccode\u003ewp-admin/admin-ajax.php\u003c/code\u003e containing known executable file extensions, as described in the \u003ccode\u003eDetects CVE-2026-7537 Exploitation - Malicious Script Upload Attempt\u003c/code\u003e rule.\u003c/li\u003e\n\u003cli\u003eEnable comprehensive web server logging for HTTP requests, including full URI, method, and response codes, to activate the rules and monitor for abnormal activity.\u003c/li\u003e\n\u003cli\u003eMonitor for unexpected file creations in WordPress upload directories, especially files with executable extensions like \u003ccode\u003e.php\u003c/code\u003e, as highlighted by the \u003ccode\u003eDetects CVE-2026-7537 Exploitation - Web Shell Access in Uploads Directory\u003c/code\u003e rule.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-10-29T02:48:59Z","date_published":"2026-06-14T23:21:54Z","id":"https://feed.craftedsignal.io/briefs/2026-06-mdjm-wordpress-rce/","summary":"Authenticated attackers with administrator-level privileges can exploit an arbitrary file upload vulnerability (CVE-2026-7537) in the MDJM Event Management plugin for WordPress (versions \u003c= 1.7.8.3) via the `mdjm_send_comm_email` function due to lack of file validation, enabling remote code execution.","title":"Arbitrary File Upload in MDJM Event Management Plugin for WordPress (CVE-2026-7537)","url":"https://feed.craftedsignal.io/briefs/2026-06-mdjm-wordpress-rce/"}],"language":"en","title":"CraftedSignal Threat Feed - MDJM Event Management Plugin (\u003c= 1.7.8.3)","version":"https://jsonfeed.org/version/1.1"}