CVE-2021-29271: REMARK42

Medium severity, CVSS 6.1. EPSS: 0.8% chance of exploitation in the next 30 days.

remark42 before 1.6.1 allows XSS, as demonstrated by "Locator: Locator{URL:" followed by an XSS payload. This is related to backend/app/store/comment.go and backend/app/store/service/service.go.

Affected products

• REMARK42 REMARK42: before 1.6.1 (fixed in 1.6.1)

Published 2021-03-27. Last modified 2026-06-17.