Vulnerability · Published Mar 31, 2026 · Assigned by GitHub_M

CVE-2026-33074Discourse: Vulnerability in discourse-subscriptions plugin allowing users to self-grant to higher tier subscriptions

Medium 6.3

In plain English

A medium-severity privilege mismanagement 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 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 4.0)6.3Medium

Exploit odds (30 days)0.2%top 92.6% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

Discourse is an open-source discussion platform. From versions 2026.1.0-latest to before 2026.1.3, 2026.2.0-latest to before 2026.2.2, and 2026.3.0-latest to before 2026.3.0, a user may be able to purchase a lower tier subscription but grant themselves the benefits that comes along with a higher tier subscription. This issue has been patched in versions 2026.1.3, 2026.2.2, and 2026.3.0.

Affected products (as reported)

Vendor	Product	Versions
discourse	discourse	>= 2026.1.0-latest, < 2026.1.3>= 2026.2.0-latest, < 2026.2.2>= 2026.3.0-latest, < 2026.3.0

Weakness: CWE-269, CWE-285 · Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References

https://github.com/discourse/discourse/security/advisories/GHSA-9vg5-mp49-xghh x_refsource_CONFIRM
https://github.com/discourse/discourse/commit/c34f2aac8dcd1ae2886fa84256f607bc003f9d80 x_refsource_MISC