What’s Vulnerable › Vulnerabilities

CVE-2026-25764: OpenProject vulnerable to Stored HTML injection

• Severity: low (CVSS 3.5 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: 2026-02-06 · updated 2026-06-17
• Weakness: CWE-80

Description

OpenProject is an open-source, web-based project management software. Prior to versions 16.6.7 and 17.0.3, an HTML injection vulnerability occurs in the time tracking function of OpenProject. The application does not escape HTML tags, an attacker with administrator privileges can create a work package with the name containing the HTML tags and add it to the Work package section when creating time tracking. This issue has been patched in versions 16.6.7 and 17.0.3.

Affected products

• opf openproject: before 16.6.7; from 17.0.0 before 17.0.3 — fixed in 16.6.7, 17.0.3

How to fix

Upgrade to a fixed version: opf openproject 16.6.7, 17.0.3. Check the vendor advisory for mitigations.

References

• https://github.com/opf/openproject/releases/tag/v16.6.7
• https://github.com/opf/openproject/releases/tag/v17.0.3
• https://github.com/opf/openproject/security/advisories/GHSA-q523-c695-h3hp

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