5.4

CVE-2023-22468

Discourse vulnerable to Cross-site Scripting in local oneboxes

Discourse is an open source platform for community discussion. Versions prior to 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed), are vulnerable to cross-site Scripting. A maliciously crafted URL can be included in a post to carry out cross-site  scripting attacks on sites with disabled or overly permissive CSP (Content Security Policy). Discourse's default CSP prevents this vulnerability. This vulnerability is patched in versions 2.8.13 (stable), 3.0.0.beta16 (beta) and 3.0.0beta16 (tests-passed). As a workaround, enable and/or restore your site's CSP to the default one provided with Discourse.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Discourse ≫ Discourse Version < 2.8.13
Discourse ≫ Discourse Version 2.9.0 Update beta1 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta10 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta11 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta12 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta13 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta14 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta2 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta3 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta4 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta5 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta6 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta7 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta8 SwEdition beta
Discourse ≫ Discourse Version 2.9.0 Update beta9 SwEdition beta
Discourse ≫ Discourse Version 3.0.0 Update beta15 SwEdition beta
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.5% 0.39
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.4 2.3 2.7
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
security-advisories@github.com 8.8 2.8 5.9
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

https://github.com/discourse/discourse/security/advisories/GHSA-8mr2-xf8r-wr8m
Third Party Advisory