CVE-2021-43032
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...
- Published
- Nov 3, 2021
- Updated
- Aug 4, 2024
- Assigning CNA
- mitre
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:NLow · next 30 days
- Percentile
- 59.2%
- Model date
- Oct 15, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
Post authenticated stored-xss in XenForo versions ≤ 2.2.7
Responsible use
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