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Critical, CVSS 9.1

Moodle Oauth 2 Insufficiently Protects Against Compromise

CVE-2019-14880GHSA-rv62-6f56-j83w

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (moodle/moodle 3.7.3, 3.6.7, 3.5.9), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • Packagist moodle/moodle

    Affected
    >= 3.7.0, < 3.7.3>= 3.6.0, < 3.6.7>= 3.5.0, < 3.5.9
    Fixed in
    3.6.7, 3.5.9, 3.7.3

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
9.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS
  • CVE-2019-14880: 1.11% estimated exploitation activity in the next 30 days; percentile 65.87 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

A vulnerability was found in Moodle versions 3.7 before 3.7.3, 3.6 before 3.6.7, 3.5 before 3.5.9 and earlier. OAuth 2 providers who do not verify users' email address changes require additional verification during sign-up to reduce the risk of account compromise.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-rv62-6f56-j83w

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: CVE-2019-14880

Advisory: Moodle Oauth 2 Insufficiently Protects Against Compromise
IDs: CVE-2019-14880, GHSA-rv62-6f56-j83w
Record: https://patchnext.com/advisories/cve-2019-14880 (revision 1, source checked 26 Oct 2026, 14:09 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: moodle/moodle 3.7.3, 3.6.7, 3.5.9. A vendor fix does not mean a deployment is fixed.

## Affected components
- Packagist moodle/moodle: affected >= 3.7.0, < 3.7.3; >= 3.6.0, < 3.6.7; >= 3.5.0, < 3.5.9; fixed in 3.6.7, 3.5.9, 3.7.3

## Suggested inspection (read-only)
- Packagist moodle/moodle: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on moodle/moodle.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-rv62-6f56-j83w (GitHub-reviewed advisory GHSA-rv62-6f56-j83w lists affected ranges: Packagist moodle/moodle >=3.7.0 =3.6.0 =3.5.0 <3.5.9)

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