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Medium severity6.1NVD Advisory· Published Mar 15, 2021· Updated Jun 17, 2026

CVE-2021-27949

CVE-2021-27949

Description

Cross-site Scripting vulnerability in MyBB before 1.8.26 via Custom moderator tools.

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: <1.8.26
- (no CPE)range: <1.8.26
MyBB/MyBBdescription

Patches

Vulnerability mechanics

References

1

github.com/mybb/mybb/security/advisories/GHSA-cmmr-39v8-8rx2nvdPatchRelease NotesThird Party Advisory

News mentions

0

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