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TI-2024-24692 Aliases CVE-2024-37165

Discourse has an XSS via Onebox system

Priority LOW 28CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Discourse is an open source discussion platform. Prior to 3.2.3 and 3.3.0.beta3, improperly sanitized Onebox data could lead to an XSS vulnerability in some situations. This vulnerability only affects Discourse instances which have disabled the default Content Security Policy. This vulnerability is fixed in 3.2.3 and 3.3.0.beta3.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00364 30th percentileScored 2026-11-07
Fix Fixed discourse (discourse): 3.2.3, 3.3.0.beta3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
discoursediscoursebefore 3.2.3; 3.3.0.beta1 to before 3.3.0.beta33.2.3, 3.3.0.beta3Patch availableCNA
  • discourse Vendordiscourse Affected before 3.2.3; 3.3.0.beta1 to before 3.3.0.beta3 Fixed in 3.2.3, 3.3.0.beta3 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*before 3.2.3Vulnerablediscourse
cpe:2.3:a:discourse:discourse:3.3.0:beta1:*:*:beta:*:*:*3.3.0 beta1Vulnerablediscourse
cpe:2.3:a:discourse:discourse:3.3.0:beta2:*:*:beta:*:*:*3.3.0 beta2Vulnerablediscourse
  • cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:* Versions before 3.2.3 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:3.3.0:beta1:*:*:beta:*:*:* Versions 3.3.0 beta1 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:3.3.0:beta2:*:*:beta:*:*:* Versions 3.3.0 beta2 Vulnerable ·discourse

Remediation

  • Fix · CNA discourse (discourse) Fixed in 3.2.3, 3.3.0.beta3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-37165

References

Patch 2

Advisory 1

  • TI-2021-19656 Denial of Service in discourse CVSS 3.1MEDIUM 6.8
  • TI-2024-36150 Potential Backup file leaked via Nginx in Discourse CVSS 3.1HIGH 7.5
  • TI-2021-18002 RCE via malicious SNS subscription payload CVSS 3.1CRITICAL 10.0
  • TI-2026-24651 Discourse: Open redirect via `sso_destination_url` cookie in `enter` CVSS 4.0MEDIUM 5.1
  • TI-2026-22278 Discourse leaks private topic title and post excerpt via user action API endpoint CVSS 4.0HIGH 8.7
  • TI-2023-24152 Unauthenticated access to new private chat messages in Discourse CVSS 3.1HIGH 7.5
See all 262 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences