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TI-2020-01638 Aliases CVE-2020-1691GHSA-cwhp-rqfr-8462

Cross-site scripting in Moodle

Priority LOW 25CWE-79Published · Updated

Key facts

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

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

Summary

In Moodle 3.8, messages required extra sanitizing before updating the conversation overview, to prevent the risk of stored cross-site scripting.

Why it matters now

EPSS 0.00649 51st percentileScored 2026-11-07
Fix Fixed moodle/moodle (Packagist): 3.8.1

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—Moodle3.8—No fix listedCNA
—moodle/moodle (Packagist)3.8 to before 3.8.13.8.1Patch availableGHSA-cwhp-rqfr-8462
  • Moodle Vendor— Affected 3.8 Fixed in — No fix listed CNA
  • moodle/moodle (Packagist) Vendor— Affected 3.8 to before 3.8.1 Fixed in 3.8.1 Patch available GHSA-cwhp-rqfr-8462

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:moodle:moodle:3.8.0:*:*:*:*:*:*:*3.8.0VulnerableMoodle
  • cpe:2.3:a:moodle:moodle:3.8.0:*:*:*:*:*:*:* Versions 3.8.0 Vulnerable ·Moodle

Remediation

  • Fix · GHSA-cwhp-rqfr-8462 moodle/moodle (Packagist) Fixed in 3.8.1 Advisory →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-1691
  2. 2026-10-03 Alias added: GHSA-cwhp-rqfr-8462
  3. 2026-10-23 EPSS moved to the 50th–90th percentile

References

Patch 1

Advisory 1

Other 1

  • TI-2024-22468 moodle: unsafe direct use of $_SERVER['HTTP_REFERER'] in admin/tool/mfa/index.php CVSS 3.1CRITICAL 9.8
  • TI-2021-14741 In Moodle, an SQL injection risk was identified in the library fetching a user's recent courses. CVSS 3.1CRITICAL 9.8
  • TI-2024-29071 Moodle: remote code execution via calculated question types CVSS 3.1HIGH 8.1
  • TI-2016-06653 Moodle 3.1.2 allows remote attackers to obtain sensitive information via unspecified… CVSS 3.1HIGH 7.5
  • TI-2022-00259 SQL injection in moodle CVSS 3.1CRITICAL 9.8
  • TI-2022-16116 Path traversal in Moodle CVSS 3.1HIGH 7.5
See all 636 →

Sources

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