Improper input validation in Discourse
CVE-2022-23549
Discourse is an option source discussion platform. Prior to version 2.8.14 on the `stable` branch and version 2.9.0.beta16 on the `beta` and `tests-passed` branches, users can create posts with raw body longer than the `max_length` site setting by including html comments that are not counted toward the character limit. This issue is patched in versions 2.8.14 and 2.9.0.beta16. There are no known workarounds.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (45.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: -0.000
Affected products
- Discourse — versions 2.8.14, 2.9.0.beta16, 2.9.0.beta0
Weakness classification (CWE)
References
- github.com/discourse/discourse/commit/bf6b08670a927cc80bb090b7a2e710b4b554e6a8 (Patch, Third Party Advisory)
- github.com/discourse/discourse/security/advisories/GHSA-p47g-v5wr-p4xp (Third Party Advisory)
Frequently asked questions
- What is CVE-2022-23549?
- CVE-2022-23549 is a medium-severity vulnerability in Discourse, classified under Improper Input Validation. CVSS score: 5.7/10. Published 2023-01-05.
- How severe is CVE-2022-23549?
- Medium severity. CVSS v3 base score is 5.7 out of 10.