Vulnerability · Published Jun 13, 2023 · Assigned by GitHub_M

CVE-2023-34250Discourse vulnerable to exposure of number of topics recently created in private categories

Medium 4.8

In plain English

A medium-severity information exposure in discourse from discourse. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 34% of all known vulnerabilities).

Severity (CVSS 3.1)4.8Medium

Exploit odds (30 days)0.4%top 65.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Discourse is an open source discussion platform. Prior to version 3.0.4 of the `stable` branch and version 3.1.0.beta5 of the `beta` and `tests-passed` branches, an attacker could use the new topics dismissal endpoint to reveal the number of topics recently created (but not the actual content thereof) in categories they didn't have access to. This issue is patched in version 3.0.4 of the `stable` branch and version 3.1.0.beta5 of the `beta` and `tests-passed` branches. There are no known workarounds.

Affected products (as reported)

Vendor	Product	Versions
discourse	discourse	< 3.0.4>= 3.1.0.beta1, < 3.1.0.beta5

Weakness: CWE-200 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

References

https://github.com/discourse/discourse/security/advisories/GHSA-q8m5-wmjr-3ppg x_refsource_CONFIRM