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TI-2019-16095 Aliases CVE-2019-1020017GHSA-2j7x-g4cv-2735

Discourse before 2.3.0 and 2.4.x before 2.4.0.beta3 lacks a confirmation screen when logging in via a user-api OTP.

Priority LOW 26Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA.

Summary

Discourse before 2.3.0 and 2.4.x before 2.4.0.beta3 lacks a confirmation screen when logging in via a user-api OTP.

Why it matters now

EPSS 0.00861 58th percentileScored 2026-11-07
Fix Fixed Discourse: 2.3.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—Discoursebefore 2.3.0; 2.4.0.beta1; 2.4.0.beta2; fixed in 2.4.0.beta32.3.0Patch availableCNA
  • Discourse Vendor— Affected before 2.3.0; 2.4.0.beta1; 2.4.0.beta2; fixed in 2.4.0.beta3 Fixed in 2.3.0 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*before 2.3.0Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.4.0:beta1:*:*:*:*:*:*2.4.0 beta1Vulnerablediscourse
cpe:2.3:a:discourse:discourse:2.4.0:beta2:*:*:*:*:*:*2.4.0 beta2Vulnerablediscourse
  • cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:* Versions before 2.3.0 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:2.4.0:beta1:*:*:*:*:*:* Versions 2.4.0 beta1 Vulnerable ·discourse
  • cpe:2.3:a:discourse:discourse:2.4.0:beta2:*:*:*:*:*:* Versions 2.4.0 beta2 Vulnerable ·discourse

Remediation

  • Fix · CNA Discourse Fixed in 2.3.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-1020017
  2. 2026-10-03 Alias added: GHSA-2j7x-g4cv-2735

References

Patch 2

  • 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