{"api_version":"1","generated_at":"2026-05-12T18:10:46+00:00","cve":"CVE-2026-41887","urls":{"html":"https://cve.report/CVE-2026-41887","api":"https://cve.report/api/cve/CVE-2026-41887.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-41887","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-41887"},"summary":{"title":"Flarum: Path traversal in LESS parser via theme color settings (incomplete fix for CVE-2023-27577)","description":"Flarum is open-source forum software. Prior to versions 1.8.16 and 2.0.0-rc.1, Flarum's patch for CVE-2023-27577 restricted the @import and data-uri() LESS features in the custom_less setting, but the same restriction was never applied to other settings registered as LESS config variables (for example theme_primary_color and theme_secondary_color, as well as any key registered via Extend\\Settings::registerLessConfigVar()). 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