Discourse is an open-source community discussion platform. In versions 3.5.0 and below, the Discourse AI suggestion endpoints for topic “Title”, “Category”, and “Tags” allowed authenticated users to extract information about topics that they weren’t authorized to access. By modifying the “topic_id” value in API requests to the AI suggestion endpoints, users could target specific restricted topics. The AI model’s responses then disclosed information that the authenticated user couldn’t normally access. This issue is fixed in version 3.5.1. To workaround this issue, users can restrict group access to the AI helper feature through the "composer_ai_helper_allowed_groups" and "post_ai_helper_allowed_groups" site settings.
CVE-2025-58055
This medium-severity CVE scores 4.3 under NVD CVSS v3. EPSS exploit probability: 0.2%, top 85% 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
- 4.3
- EG Score
- 4.3(medium)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: 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 computedSeverity43% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 14.8%
- KEV
- Not listed
Published
October 1, 2025
Last Modified
October 23, 2025
References (4)
- security-advisories@githubhttps://github.com/discourse/discourse/commit/28d569cae9b33cd55d647bf41806106e33d975c9
- security-advisories@githubhttps://github.com/discourse/discourse/security/advisories/GHSA-32v2-x274-vfhr
- af854a3a-2127-422b-91ae-364da2661108https://www.vicarius.io/vsociety/posts/cve-2025-58055-detect-discourse-vulnerability
- af854a3a-2127-422b-91ae-364da2661108https://www.vicarius.io/vsociety/posts/cve-2025-58055-mitigate-discourse-vulnerability
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 11× in last 7d / 44× 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.
- 2026-07-23 18:41 UTCOSV refresh
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 02:59 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-07-06 16:27 UTCEPSS rescore
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- 2026-07-06 13:11 UTCOSV refresh
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- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 17:52 UTCEPSS rescore
- 2026-06-18 01:14 UTCOSV refresh
- 2026-06-17 17:52 UTCEPSS rescore
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- 2026-05-31 22:30 UTCEPSS rescore
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- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-31 00:16 UTCEPSS rescore
- 2026-05-29 21:42 UTCEG score recompute
- 2026-05-29 19:20 UTCOSV refresh
- 2026-05-29 13:44 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-284
- CVE-2015-10057NVD 4.6EG 9.8MEDIUM
- CVE-2010-5305EG 9.8EPSS 92%CRITICAL
- CVE-2015-9209EG 9.8CRITICAL
- CVE-2015-9152EG 9.8CRITICAL
- CVE-2014-10059EG 9.8CRITICAL
- CVE-2014-10053EG 9.8CRITICAL
- CVE-2014-10050EG 9.8CRITICAL
- CVE-2015-0150EG 9.8CRITICAL
- CVE-2014-2048EG 9.8CRITICAL
- CVE-2013-0422EG 9.8 KEVEPSS 100%CRITICAL
Frequently asked(5)
What is CVE-2025-58055?
When was CVE-2025-58055 disclosed?
Is CVE-2025-58055 actively exploited?
What is the CVSS score of CVE-2025-58055?
How do I remediate CVE-2025-58055?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2025-58055
Is Your Infrastructure Affected by CVE-2025-58055?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.