{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","feed_url":"https://feed.craftedsignal.io/products/organic-idx--5.3.0/feed.json","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":8.8,"id":"CVE-2026-16236"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["Organic IDX (\u003c= 5.3.0)"],"_cs_severities":["high"],"_cs_tags":[],"_cs_type":"advisory","_cs_vendors":["Realtyna"],"content_html":"\u003cp\u003eThe Realtyna Organic IDX plugin for WordPress, in versions up to and including 5.3.0, is susceptible to an arbitrary file upload vulnerability. This vulnerability originates from the saveLiveImages() function, which fails to implement necessary file extension and content validation. Additionally, the plugin exhibits insufficient authorization checks within the get_keys() AJAX handler and a complete lack of authentication checks on the REST API import endpoint.\u003c/p\u003e\n\u003cp\u003eThese security flaws permit an authenticated attacker, holding at least subscriber-level privileges, to upload malicious files to the server. By bypassing these checks, an attacker can upload web shells or other malicious scripts, which can then be executed to gain remote code execution (RCE) on the underlying WordPress server. This poses a significant risk to the integrity and confidentiality of the host environment, as it effectively provides a pathway for unauthorized code execution within the web context.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker registers or gains access to a subscriber-level account on a WordPress site utilizing Organic IDX \u0026lt;= 5.3.0.\u003c/li\u003e\n\u003cli\u003eAttacker targets the insecure REST API import endpoint or the get_keys() AJAX handler to initiate an interaction.\u003c/li\u003e\n\u003cli\u003eAttacker crafts a malicious payload, such as a PHP web shell, encapsulated within a file upload request.\u003c/li\u003e\n\u003cli\u003eAttacker sends an HTTP POST request to the vulnerable endpoint, bypassing the insufficient authentication controls.\u003c/li\u003e\n\u003cli\u003eThe saveLiveImages() function fails to validate the file extension or content, allowing the server to save the malicious file to the web root.\u003c/li\u003e\n\u003cli\u003eAttacker navigates to the uploaded file path via a browser or script to trigger the execution of the embedded code.\u003c/li\u003e\n\u003cli\u003eThe server executes the malicious script under the context of the web server user.\u003c/li\u003e\n\u003cli\u003eAttacker gains persistence or performs further post-exploitation activities such as data exfiltration.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability allows an authenticated attacker to upload arbitrary files, leading to potential remote code execution. This can result in a full site compromise, sensitive data theft, and the ability to pivot into the underlying server network. All WordPress sites running the Organic IDX plugin version 5.3.0 or earlier are currently at risk.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eImmediately update the Realtyna Organic IDX plugin to the latest version that patches CVE-2026-16236.\u003c/li\u003e\n\u003cli\u003eDisable the Realtyna Organic IDX plugin until a security update is applied if patching cannot be performed immediately.\u003c/li\u003e\n\u003cli\u003eAudit web server logs for suspicious POST requests targeting /wp-json/ or specific AJAX handler endpoints that result in file creation in public directories.\u003c/li\u003e\n\u003cli\u003eRestrict access to the WordPress dashboard and administrative REST API endpoints to known, trusted IP addresses to prevent unauthorized access by potential attackers.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-07-31T07:36:25Z","date_published":"2026-07-31T07:36:25Z","id":"https://feed.craftedsignal.io/briefs/2026-07-realtyna-idx-upload/","summary":"The Realtyna Organic IDX plugin for WordPress contains an arbitrary file upload vulnerability (CVE-2026-16236) due to improper validation and authentication, allowing remote attackers to achieve remote code execution.","title":"Arbitrary File Upload Vulnerability in Realtyna Organic IDX Plugin","url":"https://feed.craftedsignal.io/briefs/2026-07-realtyna-idx-upload/"}],"language":"en","title":"CraftedSignal Threat Feed - Organic IDX (\u003c= 5.3.0)","version":"https://jsonfeed.org/version/1.1"}