An issue was discovered in the Comments plugin before 1.5.6 for Craft CMS. There is stored XSS via a guest name.
https://github.com/verbb/comments/blob/craft-3/CHANGELOG.md#155---2020-05-28-critical
Source: Mitre, NVD
Published: 2020-06-05
Updated: 2026-06-17
Base Score: 3.5
Vector: CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N
Severity: Low
Base Score: 5.4
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Severity: Medium
EPSS: 0.00206