What’s Vulnerable › Vulnerabilities
CVE-2026-34947: Discourse: Staged user custom fields are exposed on public invite pages
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-04-03 · updated 2026-07-24
- Weakness: CWE-200
Description
Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, staged user custom fields and username are exposed on public invite pages without email verification. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.
Affected products
- discourse: from 2026.1.0 through 2026.1.2; from 2026.2.0 through 2026.2.1; 2026.3.0
References
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