cve.bz

CVE-2021-29272

6.1 mediumEPSS 0.9%

Medium (6.1) in microco bluemonday. EPSS 0.9% chance of exploitation in the next 30 days. Fixed in github.com/microcosm-cc/bluemonday 1.0.5.

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

Severity

CVSS 3.1

6.1 medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
EPSS
0.9% chance of exploitation in the next 30 days; higher than 60% of CVEs (scores of 2026-10-31)
CWE
CWE-79
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-3x58-xr87-2fcjGogithub.com/microcosm-cc/bluemonday<1.0.51.0.5
GO-2022-0762Gogithub.com/microcosm-cc/bluemonday<1.0.51.0.5

References

Check your stackJSON