CVE-2021-43032

MEDIUM
Published Nov 3, 20214y ago · Modified Jun 17, 20262w ago
4.8 CVSS 3.1
Medium
Find Similar
Published Nov 3, 2021 4y ago
Last Modified Jun 17, 2026 2w ago

Description

In XenForo through 2.2.7, a threat actor with access to the admin panel can create a new Advertisement via the Advertising function, and save an XSS payload in the body of the HTML document. This payload will execute globally on the client side.

CVSS Details

Base Score
4.8
Exploitability
1.7
Impact
2.7
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction Required
Scope Changed
Confidentiality Low
Integrity Low
Availability None

Threat Intelligence

No active exploitation signals — not in CISA KEV and no EPSS score yet.

Exploit & Patch Status
Public Exploit Known
No Patch Available

Weaknesses 1

CWE-79 Cross-site Scripting Injection

Affected Products 1

VendorProductVersionRange
xenforoxenforo* ≤2.2.7

References 2

  • github.com https://github.com/SakuraSamuraii/CVE-2021-43032
    ExploitThird Party Advisory
  • xenforo.com https://xenforo.com/community/forums/announcements/
    Release NotesVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.