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TI-2026-83019 Aliases CVE-2026-119555GHSA-32c3-9m45-xg9f

Information disclosure in Moodle grade feedback web service

Priority LOW 23CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Moodle 4.2.0 through 4.5.15, 5.0.0 through 5.0.11, 5.1.0 through 5.1.8, 5.2.0 through 5.2.4 and 5.3.0 are affected. The core_grades_get_feedback web service lacks group-membership and enrolment checks, which is an authorization bypass through a user-controlled key (CWE-639). A non-editing teacher can read other groups' grade feedback and users' names and email addresses by changing userid values.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Description from the CNA

Moodle 4.2.0 through 4.5.15, 5.0.0 through 5.0.11, 5.1.0 through 5.1.8, 5.2.0 through 5.2.4, and 5.3.0 contain an information disclosure vulnerability in the core_grades_get_feedback web service. The service lacks group-membership and enrolment checks, so non-editing teachers can iterate userid values to read other groups' grade feedback and users' names and identity fields such as email.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00217 12th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

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
Moodlemoodle5.3.0; 5.2.0 – 5.2.4; 5.1.0 – 5.1.8; 5.0.0 – 5.0.11; 4.2.0 – 4.5.15—No fix listedCNA
  • moodle VendorMoodle Affected 5.3.0; 5.2.0 – 5.2.4; 5.1.0 – 5.1.8; 5.0.0 – 5.0.11; 4.2.0 – 4.5.15 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*——Moodle
  • cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:* Versions — — ·Moodle

Remediation

The sources list no fixed version for Moodle.

Written with Claude Haiku 5.5 from the sources below · 2026-10-30

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-30 Threatist record created from CVE-2026-119555
  2. 2026-10-30 Alias added: GHSA-32c3-9m45-xg9f
  3. 2026-10-30 Affected versions changed · Red Hat
  4. 2026-10-30 CVSS score added · Red Hat
  5. 2026-11-05 CISA SSVC decision points changed

References

Advisory 1

Other 2

  • 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-2025-24200 Moodle LMS Jmol Plugin Path Traversal CVSS 4.0HIGH 8.7
  • 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
See all 644 →

Sources

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