CVE-2021-37633 HIGH

CVE-2021-37633: XSS via d-popover and d-html-popover attribute

Vendor Discourse
Product discourse
Weakness CWE-79 · XSS
Published August 9, 2021
Last update August 4, 2024
View on NVD All CVEs

CVSS base score

7.4/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Discourse is an open source discussion platform. In versions prior to 2.7.8 rendering of d-popover tooltips can be susceptible to XSS attacks. This vulnerability only affects sites which have modified or disabled Discourse's default Content Security Policy. This issue is patched in the latest `stable` 2.7.8 version of Discourse. As a workaround users may ensure that the Content Security Policy is enabled, and has not been modified in a way which would make it more vulnerable to XSS attacks.

Key dates

02Disclosure timeline

August 9, 2021 CVE published
August 4, 2024 Record updated