PT-2023-19958 · Discourse · Discourse

Highjomaxro · Published 2023-03-17 · Updated 2024-03-06 · CVE-2023-25172

Positive Technologies (AI Summary)

CVSS v3.1

4.4

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Discourse versions prior to 3.0.1 of the stable branch Discourse versions prior to 3.1.0.beta2 of the beta and tests-passed branches

Description Discourse is an open-source discussion platform. A maliciously crafted URL can be included in a user's full name field to carry out cross-site scripting attacks on sites with a disabled or overly permissive Content Security Policy (CSP). Discourse's default CSP prevents this issue.

Recommendations For versions prior to 3.0.1 of the stable branch, update to version 3.0.1 or later. For versions prior to 3.1.0.beta2 of the beta and tests-passed branches, update to version 3.1.0.beta2 or later. As a temporary workaround, enable and/or restore your site's CSP to the default one provided with Discourse.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-DISCOURSE-2023-25172

CVE-2023-25172

GHSA-7PM2-PRXW-WRVP

Affected Products

Discourse

References · 11

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/25xxx/CVE-2023-25172.json · Exploit
• https://github.com/discourse/discourse/commit/1a5a6f66cb821ed29a737311d6fdc2eba5adc915 · Patch
• https://github.com/discourse/discourse/commit/c186a46910431020e8efc425dec2133e7a99fa9a · Patch
• https://github.com/discourse/discourse/pull/20009 · Patch
• https://github.com/discourse/discourse/pull/20008 · Patch
• https://github.com/discourse/discourse/security/advisories/GHSA-7pm2-prxw-wrvp · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-25172 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-discourse-2023-25172 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-25172 · Security Note
• https://t.me/cvenotify/46726 · Telegram Post
• https://t.me/cibsecurity/60259 · Telegram Post