Discourse is an open-source discussion platform. Prior to version 3.4.4 of the `stable` branch, version 3.5.0.beta5 of the `beta` branch, and version 3.5.0.beta6-dev of the `tests-passed` branch, Codepen is present in the default `allowed_iframes` site setting, and it can potentially auto-run arbitrary JS in the iframe scope, which is unintended. This issue is patched in version 3.4.4 of the `stable` branch, version 3.5.0.beta5 of the `beta` branch, and version 3.5.0.beta6-dev of the `tests-passed` branch. As a workaround, the Codepen prefix can be removed from a site's `allowed_iframes`.
References
| Link | Resource |
|---|---|
| https://github.com/discourse/discourse/security/advisories/GHSA-cm93-6m2m-cjcv | Vendor Advisory |
Configurations
Configuration 1 (hide)
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History
25 Sep 2025, 20:27
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 9.8 |
| CPE | cpe:2.3:a:discourse:discourse:3.5.0:beta4:*:*:beta:*:*:* cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* cpe:2.3:a:discourse:discourse:3.5.0:beta3:*:*:beta:*:*:* cpe:2.3:a:discourse:discourse:3.5.0:beta2:*:*:beta:*:*:* cpe:2.3:a:discourse:discourse:3.5.0:beta1:*:*:beta:*:*:* cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:* |
|
| First Time |
Discourse
Discourse discourse |
|
| References | () https://github.com/discourse/discourse/security/advisories/GHSA-cm93-6m2m-cjcv - Vendor Advisory |
12 Jun 2025, 16:06
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2025-06-09 13:15
Updated : 2025-09-25 20:27
NVD link : CVE-2025-48877
Mitre link : CVE-2025-48877
CVE.ORG link : CVE-2025-48877
JSON object : View
Products Affected
discourse
- discourse
CWE
CWE-1038
Insecure Automated Optimizations