CVE-2021-29272

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CVSS 3.1

6.1 medium

EPSS

<1%p58

Published

Mar 27, 2021 (Mar 27, 2021)

Modified

Jun 17, 2026

Description

bluemonday before 1.0.5 allows XSS because certain Go lowercasing converts an uppercase Cyrillic character, defeating a protection mechanism against the "script" string.

Vendors: microco
Products: bluemonday
Weakness: CWE-79
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

NVD CVE.org GitHub PoCs EPSS (0.9%)

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