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TI-2021-19513 Aliases CVE-2021-43677GHSA-m9f5-mpg3-vr8r

Fluxbb v1.4.12 is affected by a Cross Site Scripting (XSS) vulnerability.

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

Fluxbb v1.4.12 is affected by a Cross Site Scripting (XSS) vulnerability.

Why it matters now

EPSS 0.00641 50th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:fluxbb:fluxbb:1.4.12:*:*:*:*:*:*:*1.4.12VulnerableFluxBB
  • cpe:2.3:a:fluxbb:fluxbb:1.4.12:*:*:*:*:*:*:* Versions 1.4.12 Vulnerable ·FluxBB

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-43677
  2. 2026-10-03 Alias added: GHSA-m9f5-mpg3-vr8r
  3. 2026-10-28 EPSS moved to the 50th–90th percentile

References

Advisory 1

  • 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-2011-03195 A reverse proxy issue exists in FluxBB before 1.4.7 when FORUM_BEHIND_REVERSE_PROXY is enabled. CVSS 3.1CRITICAL 9.8
  • 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
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences