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CVE-2023-49098: Reaction data for user notifications exposed in Discourse-reactions

CVE-2023-49098 · published 2 years ago

Summary

Discourse-reactions is a plugin that allows user to add their reactions to the post. Data about a user's reaction notifications could be exposed. This vulnerability was patched in commit 2c26939.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
discourse	discourse_reactions	<= 0.4 `cpe:2.3:a:discourse:discourse_reactions::::::discourse::*`

Original advisory text

Reaction data for user notifications exposed in Discourse-reactions

Discourse-reactions is a plugin that allows user to add their reactions to the post. Data about a user's reaction notifications could be exposed. This vulnerability was patched in commit 2c26939.

References

https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/49xxx/CVE-2023-49098... Vendor Advisory
https://nvd.nist.gov/vuln/detail/CVE-2023-49098 Vendor Advisory
https://github.com/discourse/discourse-reactions/security/advisories/GHSA-mq82-7... Vendor Advisory
https://github.com/discourse/discourse-reactions/commit/2c26939395177730e492640d... Patch

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit
Gives an attacker partial control

Severity

3.5 Low

Exploitation

<1% chance of attack within 30 days

Type

CWE-284Improper Access Control

Timeline

Published12 Jan 2024

Updated31 Oct 2026

First seen29 Sep 2026

Sources

CVE-2023-49098 · NVD

CVE-2023-49098 · OSV

GHSA-mq82-7v5x-rhv8 · GHSA

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