{"id":81133,"date":"2026-06-26T22:30:10","date_gmt":"2026-06-26T19:00:10","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-52781-openproject-stored-xss-on-openproject-example-com-through-api-v3-projects-project-work_packages-via-post-parameter-description\/"},"modified":"2026-06-26T22:30:10","modified_gmt":"2026-06-26T19:00:10","slug":"cve-2026-52781-openproject-stored-xss-on-openproject-example-com-through-api-v3-projects-project-work_packages-via-post-parameter-description","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-52781-openproject-stored-xss-on-openproject-example-com-through-api-v3-projects-project-work_packages-via-post-parameter-description\/","title":{"rendered":"CVE-2026-52781 &#8211; OpenProject: Stored XSS on openproject.example.com through \/api\/v3\/projects\/{project}\/work_packages via POST parameter &#8220;description&#8221;"},"content":{"rendered":"<p>CVE ID :CVE-2026-52781<\/p>\n<p>  Published : June 26, 2026, 7 p.m. | 45\u00a0minutes ago<\/p>\n<p>  Description :OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, the HTML sanitizer grants  elements unrestricted data-* attributes via :data wildcard. An attacker injects data-controller=&#8221;poll-for-changes&#8221; into a work package description, causing Stimulus.js to mount a controller that fetches an attacker-uploaded attachment and passes it to renderStreamMessage(). This executes arbitrary Turbo Stream actions \u2014 including redirect_to \u2014 in every victim&#8217;s authenticated browser session, redirecting them to an attacker-controlled server. This vulnerability is fixed in 17.3.3 and 17.4.1.<\/p>\n<p>  Severity: 0.0 | NA<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-52781 Published : June 26, 2026, 7 p.m. | 45\u00a0minutes ago Description :OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, the HTML sanitizer grants elements unrestricted data-* attributes via :data wildcard. An attacker injects data-controller=&#8221;poll-for-changes&#8221; into a work package description, causing Stimulus.js to mount a controller that fetches an &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-81133","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81133","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=81133"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/81133\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=81133"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=81133"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=81133"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}