What’s Vulnerable › Vulnerabilities
CVE-2026-30235: Business Logic Error on OpenProject through hyperlinks in markdown using DOM clobbering
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-03-11 · updated 2026-06-17
- Weakness: CWE-79
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
- opf openproject: before 17.2.0 — fixed in 17.2.0
How to fix
Upgrade to a fixed version: opf openproject 17.2.0. Check the vendor advisory for mitigations.
References
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