{"id":66885,"date":"2025-07-28T15:32:29","date_gmt":"2025-07-28T12:02:29","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2025-27802-optimizely-episerver-stored-cross-site-scripting-xss-vulnerability\/"},"modified":"2025-07-28T15:32:29","modified_gmt":"2025-07-28T12:02:29","slug":"cve-2025-27802-optimizely-episerver-stored-cross-site-scripting-xss-vulnerability","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2025-27802-optimizely-episerver-stored-cross-site-scripting-xss-vulnerability\/","title":{"rendered":"CVE-2025-27802 &#8211; &#8220;Optimizely Episerver Stored Cross-Site Scripting (XSS) Vulnerability&#8221;"},"content":{"rendered":"<p><strong>CVE ID : <\/strong>CVE-2025-27802<br \/>\n<br \/>\n<strong>Published : <\/strong> July 28, 2025, 9:15 a.m. | 2\u00a0hours, 3\u00a0minutes ago<br \/>\n<br \/>\n<strong>Description : <\/strong>The Episerver Content Management System (CMS) by Optimizely was affected by multiple Stored Cross-Site Scripting (XSS) vulnerabilities. This allowed an authenticated attacker to execute malicious JavaScript code in the victim&#8217;s browser.<\/p>\n<p>RTE properties (text fields), which could be used in the &#8220;Edit&#8221; section of the CMS,<br \/>\nallowed the input of arbitrary text. It was possible to input malicious JavaScript<br \/>\ncode in these properties that would be executed if a user visits the previewed<br \/>\npage. Attackers needed at least the role &#8220;WebEditor&#8221; in order to exploit this issue.<\/p>\n<p>Affected products: Version 11.X: EPiServer.CMS.Core (<br \/>\n<strong>Severity:<\/strong> 4.8 | MEDIUM<br \/>\n<br \/>\nVisit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID : CVE-2025-27802 Published : July 28, 2025, 9:15 a.m. | 2\u00a0hours, 3\u00a0minutes ago Description : The Episerver Content Management System (CMS) by Optimizely was affected by multiple Stored Cross-Site Scripting (XSS) vulnerabilities. This allowed an authenticated attacker to execute malicious JavaScript code in the victim&#8217;s browser. RTE properties (text fields), which could be &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-66885","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/66885","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=66885"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/66885\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=66885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=66885"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=66885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}