A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.
Priority MEDIUM 44Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled.
Why it matters now
EPSS 0.01197 68th percentileScored 2026-11-07
Fix Fixed FluxBB (FluxBB): 1.4.7
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA FluxBB (FluxBB) Fixed in 1.4.7
Timeline
- 2026-10-02 Threatist record created from CVE-2011-3621
- 2026-10-03 Alias added: GHSA-q3xj-rw6r-h329
References
More Fluxbb vulnerabilities
- TI-2025-28590 FluxBB 1.5.11 is vulnerable to Cross Site Scripting (XSS) in via the Forum Description Field in admin_forums.php. CVSS 3.1MEDIUM 5.4
- TI-2014-07771 Directory traversal vulnerability in install.php in FluxBB before 1.5.8 allows remote… CVSS 2.0HIGH 9.3
- TI-2014-08191 SQL injection vulnerability in profile.php in FluxBB before 1.4.13 and 1.5.x before 1.5.7… CVSS 2.0HIGH 7.5
- TI-2020-17425 Fluxbb 1.5.11 is affected by a denial of service (DoS) vulnerability by sending an… CVSS 3.1HIGH 7.5
- TI-2014-08192 Open redirect vulnerability in forums/login.php in FluxBB before 1.4.13 and 1.5.x before… CVSS 2.0MEDIUM 5.8
- TI-2021-19513 Fluxbb v1.4.12 is affected by a Cross Site Scripting (XSS) vulnerability. CVSS 3.1MEDIUM 6.1
Sources
- CVE-2011-3621 · CVE Program
- CVE-2011-3621 · NVD
- FIRST EPSS
- GHSA-q3xj-rw6r-h329 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences