{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/piotnet-addons-for-elementor-pro--7.1.70/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":9.8,"id":"CVE-2026-4885"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Piotnet Addons for Elementor Pro \u003c= 7.1.70"],"_cs_severities":["critical"],"_cs_tags":["arbitrary-file-upload","rce","wordpress","plugin"],"_cs_type":"threat","_cs_vendors":["WordPress"],"content_html":"\u003cp\u003eCVE-2026-4885 details an arbitrary file upload vulnerability affecting the Piotnet Addons for Elementor Pro plugin for WordPress, impacting versions up to and including 7.1.70. The vulnerability resides in the \u003ccode\u003epafe_ajax_form_builder\u003c/code\u003e function, which lacks proper file type validation. The plugin employs an incomplete blacklist approach, blocking common extensions like PHP and EXE, but failing to prevent the upload of dangerous extensions such as .phar and .phtml. This allows unauthenticated attackers to upload arbitrary files to the affected WordPress site\u0026rsquo;s server. Successful exploitation can lead to remote code execution on the server. The vulnerability is exploitable only if a file upload field is included in the form.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn unauthenticated attacker identifies a WordPress site using a vulnerable version of the Piotnet Addons for Elementor Pro plugin (\u0026lt;= 7.1.70) and with a form that includes a file upload field.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious file with a dangerous extension such as \u003ccode\u003e.phar\u003c/code\u003e or \u003ccode\u003e.phtml\u003c/code\u003e. This file contains malicious PHP code designed to execute commands on the server.\u003c/li\u003e\n\u003cli\u003eThe attacker sends an HTTP POST request to the WordPress site\u0026rsquo;s endpoint associated with the \u003ccode\u003epafe_ajax_form_builder\u003c/code\u003e function, including the crafted malicious file in the file upload field.\u003c/li\u003e\n\u003cli\u003eDue to the incomplete blacklist, the server accepts the file with the \u003ccode\u003e.phar\u003c/code\u003e or \u003ccode\u003e.phtml\u003c/code\u003e extension and saves it to the WordPress uploads directory.\u003c/li\u003e\n\u003cli\u003eThe attacker determines the full path to the uploaded file. This may involve brute-forcing or leveraging other vulnerabilities to disclose file paths.\u003c/li\u003e\n\u003cli\u003eThe attacker sends an HTTP request to the uploaded malicious file. The web server processes the file as PHP code due to the \u003ccode\u003e.phar\u003c/code\u003e or \u003ccode\u003e.phtml\u003c/code\u003e extension.\u003c/li\u003e\n\u003cli\u003eThe malicious PHP code executes, allowing the attacker to execute arbitrary commands on the server.\u003c/li\u003e\n\u003cli\u003eThe attacker gains control of the web server, potentially escalating privileges to compromise the entire system.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of CVE-2026-4885 allows unauthenticated attackers to upload arbitrary files to vulnerable WordPress sites running the Piotnet Addons for Elementor Pro plugin (\u0026lt;= 7.1.70). This can lead to remote code execution, allowing attackers to gain complete control of the web server and potentially the entire system. Attackers can then steal sensitive data, deface the website, or use the compromised server as a launchpad for further attacks.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade the Piotnet Addons for Elementor Pro plugin to a version greater than 7.1.70 to patch CVE-2026-4885.\u003c/li\u003e\n\u003cli\u003eImplement the Sigma rule \u003ccode\u003eDetect CVE-2026-4885 Exploitation — Malicious File Upload via Piotnet Addons\u003c/code\u003e to identify attempts to upload files with dangerous extensions.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for HTTP requests to \u003ccode\u003e.phar\u003c/code\u003e or \u003ccode\u003e.phtml\u003c/code\u003e files within the WordPress uploads directory, as detected by the Sigma rule \u003ccode\u003eDetect Access to Suspicious PHP Files in Uploads Directory\u003c/code\u003e.\u003c/li\u003e\n\u003cli\u003eConsider implementing web application firewall (WAF) rules to block file uploads with suspicious extensions.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-05-19T08:16:42Z","date_published":"2026-05-19T08:16:42Z","id":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-4885-wordpress-plugin-rce/","summary":"The Piotnet Addons for Elementor Pro plugin for WordPress, versions up to 7.1.70, is vulnerable to unauthenticated arbitrary file upload due to insufficient file type validation in the 'pafe_ajax_form_builder' function, potentially leading to remote code execution.","title":"CVE-2026-4885: Piotnet Addons for Elementor Pro WordPress Plugin Arbitrary File Upload Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-05-cve-2026-4885-wordpress-plugin-rce/"}],"language":"en","title":"CraftedSignal Threat Feed — Piotnet Addons for Elementor Pro \u003c= 7.1.70","version":"https://jsonfeed.org/version/1.1"}