OpenProject is open-source, web-based project management software. Prior to 17.4.0, OpenProject's rich text (markdown) rendering pipeline uses Sanitize::Config::RELAXED[:css] for inline style sanitization. This configuration permits essentially all CSS properties in style attributes on permitted HTML elements (figure, img, table, th, tr, td). This allows any authenticated user with write access to formattable text fields (work package descriptions, comments, project descriptions, news) to inject CSS This vulnerability is fixed in 17.4.0.
Metrics
Affected Vendors & Products
References
History
Sat, 27 Jun 2026 03:30:00 +0000
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| Metrics |
ssvc
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Sat, 27 Jun 2026 01:30:00 +0000
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| First Time appeared |
Opf
Opf openproject |
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| Vendors & Products |
Opf
Opf openproject |
Fri, 26 Jun 2026 20:15:00 +0000
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| Description | OpenProject is open-source, web-based project management software. Prior to 17.4.0, OpenProject's rich text (markdown) rendering pipeline uses Sanitize::Config::RELAXED[:css] for inline style sanitization. This configuration permits essentially all CSS properties in style attributes on permitted HTML elements (figure, img, table, th, tr, td). This allows any authenticated user with write access to formattable text fields (work package descriptions, comments, project descriptions, news) to inject CSS This vulnerability is fixed in 17.4.0. | |
| Title | OpenProject: Stored CSS injection via Sanitize::Config::RELAXED[:css] enables phishing overlays and data exfiltration | |
| Weaknesses | CWE-79 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-27T03:02:34.306Z
Reserved: 2026-05-07T17:07:09.316Z
Link: CVE-2026-44696
Updated: 2026-06-27T03:02:27.388Z
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OpenCVE Enrichment
Updated: 2026-06-27T01:15:08Z