Description
Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled.
Published: 2025-06-25
Score: 8.1 High
EPSS: 10.1% Moderate
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
EUVD EUVD EUVD-2025-28274 Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled.
History

Thu, 25 Sep 2025 20:30:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:discourse:discourse:3.5.0:-:*:*:beta:*:*:*

Mon, 25 Aug 2025 15:15:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:discourse:discourse:*:*:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.5.0:-:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.5.0:beta1:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.5.0:beta2:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.5.0:beta3:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.5.0:beta4:*:*:beta:*:*:*
cpe:2.3:a:discourse:discourse:3.5.0:beta5:*:*:beta:*:*:*

Wed, 25 Jun 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Wed, 25 Jun 2025 14:15:00 +0000

Type Values Removed Values Added
Description Discourse is an open-source discussion platform. Versions prior to 3.5.0.beta6 are vulnerable to cross-site scripting when the content security policy isn't enabled when using social logins. Version 3.5.0.beta6 patches the issue. As a workaround, have the content security policy enabled.
Title Discourse vulnerable to XSS via user-provided query parameter in oauth failure flow
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N'}


Subscriptions

Discourse Discourse
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2025-06-25T14:19:13.945Z

Reserved: 2025-05-28T18:49:07.585Z

Link: CVE-2025-48954

cve-icon Vulnrichment

Updated: 2025-06-25T14:18:11.064Z

cve-icon NVD

Status : Analyzed

Published: 2025-06-25T14:15:24.777

Modified: 2025-09-25T20:27:53.497

Link: CVE-2025-48954

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-06T22:16:28Z

Weaknesses