Resource exhaustion in Discourse
CVE-2022-39226
Discourse is an open source discussion platform. In versions prior to 2.8.9 on the `stable` branch and prior to 2.9.0.beta10 on the `beta` and `tests-passed` branches, a malicious actor can add large payloads of text into the Location and Website fields of a user profile, which causes issues for other users when loading that profile. A fix to limit the length of user input for these fields is included in version 2.8.9 on the `stable` branch and version 2.9.0.beta10 on the `beta` and `tests-passed` branches. There are no known workarounds.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.010 (61.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 62nd percentile — 61.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.009 · newest: 0.010 · change: +0.002
Affected products
- Discourse — versions >= 2.9.0.beta0, < 2.9.0.beta10, 2.9.0, < 2.8.9
Weakness classification (CWE)
References
- github.com/discourse/discourse/security/advisories/GHSA-jw3q-xg5g-qjrw (Third Party Advisory)
- github.com/discourse/discourse/pull/18302 (Patch, Third Party Advisory)
- github.com/discourse/discourse/commit/e69f7d2fd9c977dedbdb17f6813651e2a45bfb71 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-39226?
- CVE-2022-39226 is a medium-severity vulnerability in Discourse, classified under Improper Input Validation. CVSS score: 4.3/10. Published 2022-09-29.
- How severe is CVE-2022-39226?
- Medium severity. CVSS v3 base score is 4.3 out of 10.