CVE-2023-30611 - CVE House

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Status published Medium CVE-2023-30611

Reaction metadata exposed in private topics in Discourse-reactions

4.3 CVSS

Vulnerability Description

Discourse-reactions is a plugin that allows user to add their reactions to the post in the Discourse messaging platform. In affected versions data about what reactions were performed on a post in a private topic could be leaked. This issue has been addressed in version 0.3. Users are advised to upgrade. Users unable to upgrade should disable the discourse-reactions plugin to fully mitigate the issue.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from discourse

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Discourse moderators can access admin-only reports exposing private upload URLs

Discourse Has Denial of Service (DoS) Vulnerability in Drafts Creation Endpoint

Discourse non-admin moderators can exfiltrate private content via post ownership transfer

Discourse users archives leaked to users with moderation privileges

Affected Vendor

discourse

View all reports →

Affected Software

discourse-reactions

Vulnerable Versions:

>= 0.2, < 0.3

Timeline

Official Publish: April 19th, 2023

Last Modified: February 5th, 2025

Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Weaknesses (CWE)

MITRE ATT&CK TTPs

T1213 Data from Information Repositories

T1005 Data from Local System

T1552 Unsecured Credentials

Credential Access

T1041 Exfiltration Over C2 Channel