BIT-discourse-2025-48877

See a problem?

Import Source

https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2025-48877.json

JSON Data

https://api.osv.dev/v1/vulns/BIT-discourse-2025-48877

Aliases

CVE-2025-48877
GHSA-cm93-6m2m-cjcv

Published

2025-06-11T11:45:07Z

Modified

2026-09-10T16:00:32Z

Summary

Discourse vulnerable to auto-executing of third-party code in embedded CodePen iframe

Details

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.

Database specific

{
    "cpes": [
        "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
    ],
    "severity": "Critical"
}

References

Affected packages

Bitnami / discourse

Package

Name: discourse
Purl: pkg:bitnami/discourse

Severity

9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

3.4.4

Database specific

source

"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2025-48877.json"