CVE-2025-48954: Discourse vulnerable to XSS via user-provided query parameter in oauth failure flow
Affected: discourse · Exploitation: check available, not yet exploited
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 55% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- discourse · discourse< 3.5.0.beta6
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Check available, not yet exploited. A public nuclei template can confirm it on a system you are authorised to test.
- CISA KEV
- Not listed
- Public check
- Discourse OAuth Social Login - Cross-site Scripting · nuclei template in projectdiscovery/nuclei-templates
- Weakness
- Cross-site Scripting
- Vendor
- discourse
- Published
- June 2025
CoverageNo articles yet
No CyberSIXT article names CVE-2025-48954 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.