CVE-2021-37633CWE-79

XSS via d-popover and d-html-popover attribute

High · published August 9, 2021

CVSS v3.1
7.4
EPSS
1%
Percentile
54.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.4 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00758 · 54.7th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2021-08-09T19:35Z
EPSS history
Timeline
  • 09 AUG 19:35Z
    XSS via d-popover and d-html-popover attribute
    cvelistv5