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Flarum: Path traversal in LESS parser via theme color settings (incomplete fix for CVE-2023-27577)

🗓️ 22 Apr 2026 20:34:52Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 6 Views

Flarum patch incomplete; theme color settings can inject imports into CSS, enabling local file reads and SSRF.

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13 May 2026 13:30Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.14.9 - 6.6
EPSS0.00122
SSVC
6