{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata — refreshed continuously.","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-2231/","home_page_url":"https://feed.craftedsignal.io/","items":[{"_cs_actors":[],"_cs_cves":[],"_cs_exploited":false,"_cs_products":[],"_cs_severities":["high"],"_cs_tags":["wordpress","xss","cve-2026-2231"],"_cs_type":"advisory","_cs_vendors":[],"content_html":"\u003cp\u003eCVE-2026-2231 describes a stored cross-site scripting (XSS) vulnerability within the Fluent Booking WordPress plugin. This vulnerability affects all versions up to and including 2.0.01. The root cause is insufficient input sanitization and output escaping of multiple parameters handled by the plugin. An unauthenticated attacker can exploit this vulnerability to inject malicious JavaScript code into the WordPress site. The injected script executes in the context of the victim\u0026rsquo;s browser when they access the page containing the injected code, potentially leading to session hijacking, defacement, or other malicious activities. Successful exploitation grants the attacker the same privileges as the victim user.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAn unauthenticated attacker identifies a vulnerable parameter within the Fluent Booking plugin, specifically related to booking data.\u003c/li\u003e\n\u003cli\u003eThe attacker crafts a malicious payload containing JavaScript code.\u003c/li\u003e\n\u003cli\u003eThe attacker submits a request to the WordPress site with the crafted payload embedded within the vulnerable parameter (e.g., booking name, location, or other fields).\u003c/li\u003e\n\u003cli\u003eThe WordPress server stores the malicious payload in the database due to insufficient sanitization.\u003c/li\u003e\n\u003cli\u003eA legitimate user (e.g., an administrator or another user viewing bookings) accesses a page displaying the stored booking data.\u003c/li\u003e\n\u003cli\u003eThe malicious JavaScript code embedded in the booking data is rendered in the user\u0026rsquo;s browser.\u003c/li\u003e\n\u003cli\u003eThe injected script executes in the context of the user\u0026rsquo;s session.\u003c/li\u003e\n\u003cli\u003eThe attacker can potentially steal cookies, redirect the user to a malicious website, or perform other actions with the user\u0026rsquo;s privileges.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this stored XSS vulnerability allows an unauthenticated attacker to execute arbitrary JavaScript code in the context of a logged-in user\u0026rsquo;s browser. This can lead to account compromise, including administrator accounts, potentially leading to full control of the WordPress website. Website defacement, data theft, and redirection to phishing sites are also potential impacts. Given the widespread use of WordPress and the Fluent Booking plugin, a successful widespread exploit could affect a large number of websites.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eUpgrade the Fluent Booking plugin to a version greater than 2.0.01 to patch CVE-2026-2231.\u003c/li\u003e\n\u003cli\u003eDeploy the Sigma rule \u003ccode\u003eDetect Suspicious URI Parameters in WordPress\u003c/code\u003e to detect potential XSS attempts against WordPress sites.\u003c/li\u003e\n\u003cli\u003eMonitor web server logs for suspicious URI parameters and user input, as detected by the \u003ccode\u003eDetect WordPress XSS via URI Parameters\u003c/code\u003e Sigma rule.\u003c/li\u003e\n\u003cli\u003eImplement a web application firewall (WAF) with rules to filter out common XSS payloads.\u003c/li\u003e\n\u003cli\u003eRegularly audit and sanitize user input within WordPress plugins and themes to prevent stored XSS vulnerabilities.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-03-26T14:16:09Z","date_published":"2026-03-26T14:16:09Z","id":"/briefs/2026-03-fluentbooking-xss/","summary":"The Fluent Booking plugin for WordPress is vulnerable to stored cross-site scripting (XSS) allowing unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses the injected page, affecting versions up to and including 2.0.01.","title":"Fluent Booking WordPress Plugin Stored XSS Vulnerability","url":"https://feed.craftedsignal.io/briefs/2026-03-fluentbooking-xss/"}],"language":"en","title":"CraftedSignal Threat Feed — Cve-2026-2231","version":"https://jsonfeed.org/version/1.1"}