CVE-2026-27166

MEDIUM

4.1

Beschreibung

Discourse is an open source discussion platform. Prior to versions 2026.3.0-latest.1, 2026.2.1 and 2026.1.2, insufficient cleanup in the default Codepen allowed iframes value allows an attacker to trick a user into changing the URL of the main page. This issue has been fixed in versions 2026.3.0-latest.1, 2026.2.1 and 2026.1.2. To workaround this issue, remove Codepen from the list of allowed iframes.

CVE Details

CVSS v3.1 Bewertung4.1

SchweregradMEDIUM

CVSS VektorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:L/A:N

AngriffsvektorNETWORK

KomplexitatLOW

Erforderliche PrivilegienLOW

BenutzerinteraktionREQUIRED

Veroffentlicht3/19/2026

Zuletzt geandert3/20/2026

Quellenvd

Honeypot-Sichtungen0

Schwachen (CWE)

CWE-80

Referenzen

https://github.com/discourse/discourse/commit/c4762a4fac2f61f52f325396b11d3aeb955ea925(security-advisories@github.com)

https://github.com/discourse/discourse/security/advisories/GHSA-h653-cq78-vjj2(security-advisories@github.com)

IOC Korrelationen

Keine Korrelationen erfasst

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