<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom" xmlns:content="http://purl.org/rss/1.0/modules/content/"><channel><title>Twig — CraftedSignal Threat Feed</title><link>https://feed.craftedsignal.io/tags/twig/</link><description>Trending threats, MITRE ATT&amp;CK coverage, and detection metadata — refreshed continuously.</description><generator>Hugo</generator><language>en</language><managingEditor>hello@craftedsignal.io</managingEditor><webMaster>hello@craftedsignal.io</webMaster><lastBuildDate>Mon, 30 Mar 2026 22:16:20 +0000</lastBuildDate><atom:link href="https://feed.craftedsignal.io/tags/twig/feed.xml" rel="self" type="application/rss+xml"/><item><title>Contact Form by Supsystic WordPress Plugin SSTI Vulnerability (CVE-2026-4257)</title><link>https://feed.craftedsignal.io/briefs/2026-03-ssti-wordpress/</link><pubDate>Mon, 30 Mar 2026 22:16:20 +0000</pubDate><author>hello@craftedsignal.io</author><guid isPermaLink="true">https://feed.craftedsignal.io/briefs/2026-03-ssti-wordpress/</guid><description>The Contact Form by Supsystic WordPress plugin is vulnerable to Server-Side Template Injection (SSTI) via the `cfsPreFill` parameter, leading to unauthenticated Remote Code Execution (RCE).</description><content:encoded><![CDATA[<p>The Contact Form by Supsystic plugin, a popular WordPress plugin, is susceptible to a critical Server-Side Template Injection (SSTI) vulnerability, identified as CVE-2026-4257. This vulnerability affects all versions up to and including 1.7.36. The root cause lies in the plugin&rsquo;s use of the Twig template engine (<code>Twig_Loader_String</code>) without proper sandboxing. This, combined with the <code>cfsPreFill</code> functionality, allows unauthenticated attackers to inject arbitrary Twig expressions into form…</p>
]]></content:encoded><category domain="severity">critical</category><category domain="type">advisory</category><category>ssti</category><category>wordpress</category><category>rce</category><category>twig</category></item></channel></rss>