BIT-discourse-2025-48877

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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
Published
2025-06-11T11:45:07.067Z
Modified
2025-09-03T04:59:02.996345Z
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 
{
    "severity": "High",
    "cpes": [
        "cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"
    ]
}
References

Affected packages

Bitnami / discourse

Package

Name
discourse
Purl
pkg:bitnami/discourse

Severity

  • 8.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown 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"