CVE-2023-22454CWE-79

Discourse vulnerable to Cross-site Scripting through pending post titles descriptions

High · published January 5, 2023

CVSS v3.1
8.0
EPSS
1%
Percentile
47.8
In the wild
Unconfirmed
What it is

Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 3.0.0.beta16 on the `beta` and `tests-passed` branches, pending post titles can be used for cross-site scripting attacks. Pending posts can be created by unprivileged users when a category has the "require moderator approval of all new topics" setting set. This vulnerability can lead to a full XSS on sites which have modified or disabled Discourse’s default Content Security Policy. A patch is available in versions 2.8.14 and 3.0.0.beta16.

The record
Technical detail
CVSS v3.1
8.0 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00595 · 47.8th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2023-01-05T19:58Z
EPSS history
Timeline
  • 05 JAN 19:58Z
    Discourse vulnerable to Cross-site Scripting through pending post titles descriptions
    cvelistv5