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Medium severity5.4NVD Advisory· Published Oct 26, 2021· Updated Jun 17, 2026

CVE-2021-41866

CVE-2021-41866

Description

MyBB before 1.8.28 allows stored XSS because the displayed Template Name value in the Admin CP's theme management is not escaped properly.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3

MyBB/Mybb2 versions
cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mybb:mybb:*:*:*:*:*:*:*:*range: <1.8.28
- (no CPE)range: <1.8.28
MyBB/MyBBdescription

Patches

Vulnerability mechanics

References

2

github.com/mybb/mybb/security/advisories/GHSA-gxhv-r3m5-6qv7nvdPatchThird Party Advisory
github.com/mybb/mybb/security/advisories/nvdThird Party Advisory

News mentions

0

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