What’s Vulnerable › Vulnerabilities

CVE-2022-31060: Banner topic data is exposed on login-required Discourse sites

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-06-14 · updated 2026-06-17
• Weakness: CWE-200

Description

Discourse is an open-source discussion platform. Prior to version 2.8.4 in the `stable` branch and version `2.9.0.beta5` in the `beta` and `tests-passed` branches, banner topic data is exposed on login-required sites. This issue is patched in version 2.8.4 in the `stable` branch and version `2.9.0.beta5` in the `beta` and `tests-passed` branches of Discourse. As a workaround, one may disable banners.

Affected products

• discourse: before 2.8.4; 2.9.0-beta1, 2.9.0-beta2, 2.9.0-beta3, 2.9.0-beta4 — fixed in 2.8.4

How to fix

Upgrade to a fixed version: discourse 2.8.4. Check the vendor advisory for mitigations.

References

• https://github.com/discourse/discourse/commit/ae6a9079436fb9b20fd051d25fb6d8027f0ec59a
• https://github.com/discourse/discourse/pull/17071
• https://github.com/discourse/discourse/security/advisories/GHSA-5f4f-35fx-gqhq
• https://github.com/discourse/discourse/commit/ae6a9079436fb9b20fd051d25fb6d8027f0ec59a
• https://github.com/discourse/discourse/pull/17071
• https://github.com/discourse/discourse/security/advisories/GHSA-5f4f-35fx-gqhq

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