Cross-site scripting in bluemonday · CVE-2021-29272 · GitHub Advisory Database · GitHub

Cross-site scripting in bluemonday

Moderate severity GitHub Reviewed Published May 18, 2021 to the GitHub Advisory Database • Updated May 20, 2024

Package

github.com/microcosm-cc/bluemonday (Go)

Affected versions

< 1.0.5

Patched versions

1.0.5

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.

References

Reviewed May 18, 2021

Published to the GitHub Advisory Database May 18, 2021

Last updated May 20, 2024

Severity

Moderate

6.1

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N