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Advisory record · GHSA-w37f-pvvx-wcwm

Incorrect Calculation in moodle

CVSS 9.8 CriticalCriticalEPSS 0.051 · 92nd percentile

Critical, because:

  • CVSS score 9.8: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 19 May 2022, 00:00 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
moodle/moodlePackagist>=4.0, <4.0.1 || >=3.9, <3.9.14 || >=3.10, <3.10.11 || >=3.11, <3.11.74.0.1, 3.9.14, 3.10.11, 3.11.7
Identifiers
GHSA-w37f-pvvx-wcwm · BIT-moodle-2022-30600 · CVE-2022-30600 · PKSA-6vy4-xp1h-g5xx
Weakness (CWE)
CWE-682
Tags
Published
19 May 2022
Updated
17 Feb 2024

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Moodle versions from 3.9 before 3.9.14, 3.10 before 3.10.11, 3.11 before 3.11.7, and 4.0 before 4.0.1 are affected. The source gives few details, but a flaw in how failed login attempts are counted can let an attacker bypass the account lockout threshold. Upgrade to 3.9.14, 3.10.11, 3.11.7, or 4.0.1, depending on your branch.

Written 4 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.8 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.051, the 92nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:30 UTC First seen by agentprime
  2. 31 Oct 2026, 14:30 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.