Discourse is an open source discussion platform. When editing a topic, there is a vulnerability that enables a user to bypass the topic title validations for things like title length, number of emojis in title and blank topic titles. The issue is patched in the latest stable, beta and tests-passed version of Discourse.
CVE-2023-36466
This low-severity CVE scores 3.5 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 3.5
- EG Score
- 3.5(medium)
- EG Risk
- 16(Track)EG Risk 16/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity35% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 32.4%
- KEV
- Not listed
Published
July 14, 2023
Last Modified
November 21, 2024
References (2)
- security-advisories@githubhttps://github.com/discourse/discourse/security/advisories/GHSA-4hjh-wg43-p932
- af854a3a-2127-422b-91ae-364da2661108https://github.com/discourse/discourse/security/advisories/GHSA-4hjh-wg43-p932
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 14× in last 7d / 53× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 111 total refreshes for this CVE.
- 2026-07-23 14:16 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2023-36466?
When was CVE-2023-36466 disclosed?
Is CVE-2023-36466 actively exploited?
What is the CVSS score of CVE-2023-36466?
How do I remediate CVE-2023-36466?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2023-36466
Is Your Infrastructure Affected by CVE-2023-36466?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.