{"id":22698,"date":"2025-04-13T17:03:39","date_gmt":"2025-04-13T17:03:39","guid":{"rendered":""},"modified":"2025-09-05T10:19:47","modified_gmt":"2025-09-05T16:19:47","slug":"cve-2025-31722-critical-jenkins-templating-engine-plugin-vulnerability","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-31722-critical-jenkins-templating-engine-plugin-vulnerability\/","title":{"rendered":"<strong>CVE-2025-31722: Critical Jenkins Templating Engine Plugin Vulnerability<\/strong>"},"content":{"rendered":"<p><strong>Overview<\/strong><\/p>\n<p>CVE-2025-31722 is a notable security vulnerability that affects the Jenkins Templating Engine Plugin version 2.5.3 and earlier versions. This vulnerability allows attackers with Item\/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM. Jenkins is a widely used open-source automation <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-49759-sql-injection-vulnerability-in-sql-server-potentially-enabling-privilege-escalation-and-data-leakage\/\"  data-wpil-monitor-id=\"79213\">server that enables<\/a> developers to build, test, and deploy software. Its broad use in the software development world makes this <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-2945-unveiling-the-system-access-vulnerability-in-network-security-protocols\/\"  data-wpil-monitor-id=\"28011\">vulnerability particularly concerning as it could potentially impact numerous systems<\/a> and applications, potentially leading to system compromise or data leakage.<\/p>\n<p><strong>Vulnerability Summary<\/strong><\/p>\n<p>CVE ID: CVE-2025-31722<br \/>\nSeverity: Critical (8.8)<br \/>\nAttack Vector: Network<br \/>\nPrivileges Required: Low<br \/>\nUser Interaction: None<br \/>\nImpact: <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-33114-npu-memory-corruption-leading-to-potential-system-compromise-or-data-leakage\/\"  data-wpil-monitor-id=\"31868\">System compromise or data<\/a> leakage<\/p>\n<p><strong>Affected Products<\/strong><\/p><div id=\"ameeb-3090329745\" class=\"ameeb-content-2 ameeb-entity-placement\"><div style=\"border-left: 4px solid #555; padding-left: 20px; margin: 48px 0; font-family: Roboto, sans-serif; color: #ffffff; line-height: 1.6; max-width: 720px;\">\r\n  <h2 style=\"margin-top: 0; font-size: 22px; font-weight: 600; display: flex; align-items: center; letter-spacing: -0.02em;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"display: inline-flex; align-items: center; margin-right: 10px;\">\r\n      <img decoding=\"async\" src=\"https:\/\/www.ameeba.com\/blog\/wp-content\/uploads\/2025\/10\/Best-App-icon-Ameeba.png\" alt=\"Ameeba Chat Icon\" style=\"width: 42px; height: 42px;\" \/>\r\n    <\/a>\r\n    Share secrets securely\r\n  <\/h2>\r\n\r\n  <p style=\"margin-bottom: 14px; color: #d1d5db;\">\r\n    Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.\r\n  <\/p>\r\n\r\n  <p style=\"margin-bottom: 18px; color: #a1a1aa;\">\r\n    Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.\r\n  <\/p>\r\n\r\n  <ul style=\"list-style: none; padding-left: 0; margin-bottom: 24px; color: #e4e4e7;\">\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Encrypted identity<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Private Spaces for organizations and teams<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 End-to-end encrypted chat, calls, files, and notes<\/li>\r\n    <li style=\"margin-bottom: 8px;\">\u2022 Sensitive AI work and protected collaboration<\/li>\r\n    <li>\u2022 Built for information that cannot leak<\/li>\r\n  <\/ul>\r\n\r\n  <p style=\"font-style: italic; font-weight: 600; margin-bottom: 24px; color: #ffffff;\">\r\n    Our mission is to secure human work alongside AI.\r\n  <\/p>\r\n\r\n  <div style=\"display: flex; flex-wrap: wrap; gap: 12px;\">\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\/download\" style=\"background-color: #ffffff; color: #000000; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Download Ameeba\r\n    <\/a>\r\n\r\n    <a href=\"https:\/\/www.ameeba.com\/chat\" style=\"border: 1px solid #ffffff; color: #ffffff; padding: 10px 20px; text-decoration: none; border-radius: 8px; font-weight: 500;\">\r\n      Learn More\r\n    <\/a>\r\n  <\/div>\r\n<\/div><\/div>\n<p>Product | Affected Versions<\/p>\n<p><a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-47884-jenkins-openid-connect-provider-plugin-vulnerability-leading-to-unauthorized-access\/\"  data-wpil-monitor-id=\"49992\">Jenkins Templating Engine Plugin<\/a> | 2.5.3 and earlier versions<\/p>\n<p><strong>How the Exploit Works<\/strong><\/p>\n<p>The vulnerability stems from the lack of sandbox protection for libraries defined in folders in the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-42866-critical-memory-corruption-vulnerability-in-apples-webkit-engine\/\"  data-wpil-monitor-id=\"26166\">Jenkins Templating<\/a> Engine Plugin. An attacker who has Item\/Configure permission can <a href=\"https:\/\/www.ameeba.com\/blog\/microsoft-s-recent-patch-a-detailed-analysis-of-the-126-flaws-and-the-actively-exploited-windows-clfs-vulnerability\/\"  data-wpil-monitor-id=\"26124\">exploit this flaw<\/a> to execute arbitrary code in the context of the Jenkins controller JVM. This can be done without any interaction from the user, making the vulnerability even more potent.<\/p>\n<p><strong>Conceptual Example Code<\/strong><\/p><div id=\"ameeb-104420936\" class=\"ameeb-content ameeb-entity-placement\"><div class=\"poptin-embedded\" data-id=\"f6b387694f681\"><\/div>\r\n\r\n\r\n\r\n\r\n\r\n<\/div>\n<p>The following conceptual example demonstrates how an <a href=\"https:\/\/www.ameeba.com\/blog\/unmasking-tcesb-malware-a-deep-analysis-of-active-attacks-exploiting-eset-security-scanner\/\"  data-wpil-monitor-id=\"26582\">attacker might exploit<\/a> this vulnerability using a malicious payload:<\/p>\n<pre><code class=\"\" data-line=\"\"># Assume the attacker has gained the Item\/Configure permission\n$ jenkins_script.sh -d &#039;{ &quot;library&quot;: &quot;untrusted_library&quot;, &quot;method&quot;: &quot;execute&quot;, &quot;args&quot;: [&quot;arbitrary_code&quot;] }&#039;<\/code><\/pre>\n<p>In this example, the <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2025-35996-cross-site-scripting-attack-in-kunbus-pictory\/\"  data-wpil-monitor-id=\"42859\">attacker uses a script<\/a> (`jenkins_script.sh`) to execute a method (`execute`) from an untrusted library. The `arbitrary_code` argument is the malicious payload that the attacker wants to run in the context of the Jenkins controller JVM.<\/p>\n<p><strong>Recommendations<\/strong><\/p>\n<p>To <a href=\"https:\/\/www.ameeba.com\/blog\/cve-2023-51063-understanding-and-mitigating-a-dom-based-xss-vulnerability-in-qstar-archive-solutions\/\"  data-wpil-monitor-id=\"28010\">mitigate this vulnerability<\/a>, users are advised to apply the latest vendor patch as soon as possible. If a patch cannot be applied immediately, a temporary mitigation can be achieved by using a Web Application Firewall (WAF) or Intrusion Detection System (IDS). These systems can be configured to detect and block attempts to <a href=\"https:\/\/www.ameeba.com\/blog\/fortinet-s-fortigate-vulnerability-ssl-vpn-symlink-exploit-puts-user-access-at-risk-post-patching\/\"  data-wpil-monitor-id=\"31869\">exploit this vulnerability<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Overview CVE-2025-31722 is a notable security vulnerability that affects the Jenkins Templating Engine Plugin version 2.5.3 and earlier versions. This vulnerability allows attackers with Item\/Configure permission to execute arbitrary code in the context of the Jenkins controller JVM. Jenkins is a widely used open-source automation server that enables developers to build, test, and deploy software. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-22698","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/22698","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/comments?post=22698"}],"version-history":[{"count":8,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/22698\/revisions"}],"predecessor-version":[{"id":71623,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/posts\/22698\/revisions\/71623"}],"wp:attachment":[{"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/media?parent=22698"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/categories?post=22698"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/tags?post=22698"},{"taxonomy":"vendor","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/vendor?post=22698"},{"taxonomy":"product","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/product?post=22698"},{"taxonomy":"attack_vector","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/attack_vector?post=22698"},{"taxonomy":"asset_type","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/asset_type?post=22698"},{"taxonomy":"severity","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/severity?post=22698"},{"taxonomy":"exploit_status","embeddable":true,"href":"https:\/\/www.ameeba.com\/blog\/wp-json\/wp\/v2\/exploit_status?post=22698"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}