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TI-2021-16634 Aliases CVE-2021-39249GHSA-59jh-f55w-rf36

Invision Community (aka IPS Community Suite or IP-Board) before 4.6.5.1 allows reflected…

Priority LOW 29CWE-330Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Invision Community (aka IPS Community Suite or IP-Board) before 4.6.5.1 allows reflected XSS because the filenames of uploaded files become predictable through a brute-force attack against the PHP mt_rand function.

Why it matters now

EPSS 0.00768 55th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
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:invisioncommunity:invision_power_board:*:*:*:*:*:*:*:*before 4.6.5.1Vulnerableinvisioncommunity
  • cpe:2.3:a:invisioncommunity:invision_power_board:*:*:*:*:*:*:*:* Versions before 4.6.5.1 Vulnerable ·invisioncommunity

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-39249
  2. 2026-10-03 Alias added: GHSA-59jh-f55w-rf36

References

  • TI-2012-04789 Unspecified vulnerability in admin/sources/base/core.php in Invision Power Board (aka IPB… CVSS 2.0HIGH 10.0
  • TI-2012-01985 Invision Power Board before 3.3.1 fails to sanitize user-supplied input which could allow… CVSS 3.1CRITICAL 9.8
  • TI-2016-05298 applications/core/modules/front/system/content.php in Invision Power Services IPS… CVSS 3.0HIGH 8.1
  • TI-2017-06395 Invision Power Services (IPS) Community Suite 4.1.19.2 and earlier has stored XSS in the… CVSS 3.0CRITICAL 9.8
  • TI-2013-03245 Invision Power Board (IPB) through 3.x allows admin account takeover leading to code execution. CVSS 3.1CRITICAL 9.8
  • TI-2014-04050 SQL injection vulnerability in Invision Power Board (aka IPB or IP.Board) before 3.4.6… CVSS 3.0HIGH 8.8
See all 18 →

Sources