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flarum/core
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Flarum's logout Route allows open redirects
CVE-2024-21641 · GHSA-733R-8XCP-W9MR
flarum/core
flarum/framework
Composer
Medium
Fix reported
2026-09-10
Flarum vulnerable to LFI and Blind SSRF via Avatar upload
CVE-2023-40033 · GHSA-67C6-Q4J4-HCCG
flarum/core
flarum/framework
Composer
High
Fix reported
2026-09-10
Path Traversal Vulnerability in `LESS` Parser allows reading of sensitive server files
CVE-2023-27577 · GHSA-VHM8-WWRF-3GCW
flarum/core
Composer
Medium
Fix reported
2026-09-10
XSS vulnerability with translator
CVE-2021-32671 · GHSA-5QJQ-69W6-FG57
flarum/core
Composer
Critical
Fix reported
2026-07-08
Flarum: Path traversal in LESS parser via theme color settings (incomplete fix for CVE-2023-27577)
CVE-2026-41887 · GHSA-XJVC-PW2R-6878
flarum/core
Composer
Medium
Fix reported
2026-05-13
Flarum Vulnerable to Session Hijacking via Authoritative Subdomain Cookie Overwrite
CVE-2025-27794 · GHSA-HG9J-64WP-M9PX
flarum/core
flarum/framework
Composer
Medium
Fix reported
2026-03-06
Any Flarum user including unactivated can reply in public discussions whose first post was permanently deleted
CVE-2023-22489 · GHSA-HPH3-HV3C-7725
flarum/core
Composer
Low
Fix reported
2023-11-08
Flarum notifications can leak restricted content
CVE-2023-22488 · GHSA-8GCG-VWMW-RXJ4
flarum/core
Composer
Medium
Fix reported
2023-11-08
Cross site scripting vulnerability with discussion titles
CVE-2022-41938 · GHSA-7X4W-J98P-854X
flarum/core
Composer
Critical
Fix reported
2023-11-08