PT-2023-22195 · Discourse · Discourse

0Xmokusou · Published 2023-04-18 · Updated 2024-03-06 · CVE-2023-29196

Positive Technologies (AI Summary)

CVSS v3.1

4.2

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Discourse versions prior to the latest tests-passed, beta and stable branches

Description This issue affects Discourse, an open source platform for community discussion. It is not exploitable on the default install of Discourse, requiring a custom feature to be enabled. The attacker's payload must also pass the Content Security Policy (CSP) to be executed. If successful, it could result in session hijacking for users who view the attacker's post.

Recommendations For versions prior to the latest tests-passed, beta and stable branches, upgrade to the latest version. For users unable to upgrade, enable and/or restore the site's CSP to the default one provided with Discourse and remove any embed-able hosts configured.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BIT-DISCOURSE-2023-29196

CVE-2023-29196

GHSA-986P-4X8Q-8F48

Affected Products

Discourse

References · 7

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/29xxx/CVE-2023-29196.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2023-29196 · Security Note
• https://osv.dev/vulnerability/BIT-discourse-2023-29196 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-29196 · Vendor Advisory
• https://github.com/discourse/discourse/security/advisories/GHSA-986p-4x8q-8f48 · Note
• https://t.me/cvenotify/48547 · Telegram Post
• https://t.me/cvenotify/49268 · Telegram Post