Discourse is an open-source community platform. A data leak vulnerability affects sites deployed between commits 10df7fdee060d44accdee7679d66d778d1136510 and 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b. On login-required sites, the leak meant that some content on the site's homepage could be visible to unauthenticated users. Only login-required sites that got deployed during this timeframe are affected, roughly between April 30 2025 noon EDT and May 2 2025, noon EDT. Sites on the stable branch are unaffected. Private content on an instance's homepage could be visible to unauthenticated users on login-required sites. Versions of 3.5.0.beta4 after commit 82d84af6b0efbd9fa2aeec3e91ce7be1a768511b are not vulnerable to the issue. No workarounds are available. Sites must upgrade to a non-vulnerable version of Discourse.
CVE-2025-46813
This medium-severity CVE scores 5.8 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 72% 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
A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).
- CVSS v3
- 5.8
- EG Score
- 5.8MEDIUMmedium confidence
- EG Risk
- 41EG Risk 41/100
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 computedSeverity58% × 45%Exploitation0% × 40%Automatability100% × 15% - EPSS PROB
- 0.4%
- EPSS %ILE
- 34th
- KEV
- Not listed
Published
May 5, 2025
Last Modified
September 26, 2025
References (3)
- security-advisories@githubhttps://github.com/discourse/discourse/commit/10df7fdee060d44accdee7679d66d778d1136510
- security-advisories@githubhttps://github.com/discourse/discourse/commit/82d84af6b0efbd9fa2aeec3e91ce7be1a768511b
- security-advisories@githubhttps://github.com/discourse/discourse/security/advisories/GHSA-v3h7-c287-pfg9
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 31× 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 178 total refreshes for this CVE.
- 2026-10-09 20:06 UTCEPSS rescore
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Frequently asked(5)
What is CVE-2025-46813?
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Is CVE-2025-46813 actively exploited?
What is the CVSS score of CVE-2025-46813?
How do I remediate CVE-2025-46813?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-46813
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