CVE-2021-37703
Information exposure in Discourse
MEDIUM
4.3
CVSS Score
Published: August 13, 2021 at 03:15 PM UTC
Updated: June 17, 2026 at 04:01 AM UTC
1 product affected across 1 vendorDiscourse
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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.8%
Description
Discourse is an open-source platform for community discussion. In Discourse before versions 2.7.8 and 2.8.0.beta5, a user's read state for a topic such as the last read post number and the notification level is exposed.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Affected range stops below 2.7.8, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/discourse/discourse/commit/aed65ec16d38886d7be7209d8c02df4ffd4937a4x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://github.com/discourse/discourse/security/advisories/GHSA-gq2h-qhg2-phf9CVSS
4.3MEDIUMGitHub_M
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality
- LOW
- Integrity
- NONE
- Availability
- NONE
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-200
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