PT-2023-18511 · Discourse · Discourse

Jomaxro · Published 2023-01-05 · Updated 2024-03-06 · CVE-2023-22455

Positive Technologies (AI Summary)

CVSS v3.1

6.8

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 2.8.14 Discourse versions prior to 3.0.0.beta16

Description The issue affects Discourse, an open-source discussion platform, where tag descriptions can be used for cross-site scripting attacks. This can lead to a full XSS on sites with modified or disabled Content Security Policy.

Recommendations For versions prior to 2.8.14, update to version 2.8.14 or later. For versions prior to 3.0.0.beta16, update to version 3.0.0.beta16 or later.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-DISCOURSE-2023-22455

CVE-2023-22455

GHSA-5RQ6-466R-6MR9

Affected Products

Discourse

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/22xxx/CVE-2023-22455.json · Exploit
• https://github.com/discourse/discourse/commit/692329896ac64d8581947e977202c243eef3b5a2 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-22455 · Security Note
• https://osv.dev/vulnerability/BIT-discourse-2023-22455 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-22455 · Vendor Advisory
• https://github.com/discourse/discourse/security/advisories/GHSA-5rq6-466r-6mr9 · Note
• https://t.me/cibsecurity/56020 · Telegram Post