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OpenAdvisories
Medium · 6.5 CVE-2026-30235 EUVD-2026-11235

Business Logic Error on OpenProject through hyperlinks in markdown using DOM clobbering

Published Mar 11, 2026 · Updated Mar 11, 2026 · Assigned by GitHub_M

Description

OpenProject is an open-source, web-based project management software. Prior to 17.2.0, this vulnerability occurs due to improper validation of OpenProject’s Markdown rendering, specifically in the hyperlink handling. This allows an attacker to inject malicious hyperlink payloads that perform DOM clobbering. DOM clobbering can crash or blank the entire page by overwriting native DOM functions with HTML elements, causing critical JavaScript calls to throw runtime errors during application initialization and halt further execution. This vulnerability is fixed in 17.2.0.

Affected products

VendorProductAffectedFixed
opf openproject < 17.2.0 —

References