CVE-2023-23616

Summary

Discourse is an open-source discussion platform. Prior to version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, when submitting a membership request, there is no character limit for the reason provided with the request. This could potentially allow a user to flood the database with a large amount of data. However it is unlikely this could be used as part of a DoS attack, as the paths reading back the reasons are only available to administrators. Starting in version 3.0.1 on the `stable` branch and 3.1.0.beta2 on the `beta` and `tests-passed` branches, a limit of 280 characters has been introduced for membership requests.

Impact & exploitability

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

Affected products we track (1)

Recommendation

Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.

Official patch: https://github.com/discourse/discourse/commit/3e0cc4a5d9ef44ad902f6985d046ebb32f0a14ee ↗

Additional information

• NVD record
• https://github.com/discourse/discourse/commit/3e0cc4a5d9ef44ad902f6985d046ebb32f0a14eePatch
• https://github.com/discourse/discourse/commit/d5745d34c20c31a221039d8913f33064433003eaPatch
• https://github.com/discourse/discourse/pull/19993Patch
• https://github.com/discourse/discourse/security/advisories/GHSA-6xff-p329-9pgfAdvisory