CVE-2024-54142

CRITICALNVD 9.09.0—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.0 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 66% 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).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.0Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Discourse AI is a Discourse plugin which provides a number of AI features. When sharing Discourse AI Bot conversations into posts, if the conversation had HTML entities those could leak into the Discourse application when a user visited a post with a onebox to said conversation. This issue has been addressed in commit 92f122c. Users are advised to update. Users unable to update may remove all groups from ai bot public sharing allowed groups site setting.

CVSS v3
9.0
EG Score
9.0(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: 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 computed
Severity90% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
34%
KEV
Not listed

Published

January 14, 2025

Last Modified

April 15, 2026

Advisory Details (2)

Auto-updated May 21, 2026
Patch available. Sources: github.
github Patch Available

XSS via Discourse-ai SharedAiConversation onebox · Advisory · discourse/discourse-ai · GitHub

https://github.com/discourse/discourse-ai/security/advisories/GHSA-94c2-qr2h-88jv
generic

SECURITY: Fix XSS on Shared AI Conversations local Onebox (#1069) · discourse/discourse-ai@92f122c · GitHub

https://github.com/discourse/discourse-ai/commit/92f122c54d9d7ead9223a056270bff5b4c42c73f

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 39× 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 135 total refreshes for this CVE.

  1. 2026-08-07 16:26 UTCEPSS rescore
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  73. 2026-06-03 23:39 UTCOSV refresh
  74. 2026-06-02 20:12 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2024-54142?
CVE-2024-54142 is a critical vulnerability published on January 14, 2025. Discourse AI is a Discourse plugin which provides a number of AI features. When sharing Discourse AI Bot conversations into posts, if the conversation had HTML entities those could leak into the Discourse application when a user visited a post with a onebox to said conversation. This issue has been…
When was CVE-2024-54142 disclosed?
CVE-2024-54142 was first published in the National Vulnerability Database on January 14, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2024-54142 actively exploited?
CVE-2024-54142 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 66.0% of all scored CVEs.
What is the CVSS score of CVE-2024-54142?
CVE-2024-54142 has a CVSS v3 base score of 9.0 (NVD).
How do I remediate CVE-2024-54142?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2024-54142, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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