CVE-2025-62399

Moodle: password brute force risk when mobile/web services enabled

7.5 HighFix available

Moodle’s mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

0.40%Up 0.4 points since Oct 23, 2025

What each source reports

CVE List Score used 7.5

Moodle: password brute force risk when mobile/web services enabled

Moodle’s mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Record: CVE-2025-62399
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-307
Updated: 2026-11-02

EUVDEUVD-2025-35668 7.5

Moodle’s mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Record: EUVD-2025-35668
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

GitHub AdvisoriesGHSA-m58f-9pvv-8mp2 7.5

Moodle vulnerable to brute-force password guesses

Moodle's mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Record: GHSA-m58f-9pvv-8mp2
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-307
Updated: 2026-11-02

NVD 7.5

Moodle’s mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Record: CVE-2025-62399
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-307
Updated: 2026-11-02

OSV 7.5

Moodle: password brute force risk when mobile/web services enabled

Moodle’s mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Record: CVE-2025-62399
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-307
Updated: 2026-11-02

OSVGHSA-m58f-9pvv-8mp2 7.5

Moodle vulnerable to brute-force password guesses

Moodle's mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Record: GHSA-m58f-9pvv-8mp2
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-307
Updated: 2026-11-02

OSVUBUNTU-CVE-2025-62399 7.5

Moodle’s mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Record: UBUNTU-CVE-2025-62399
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVBIT-moodle-2025-62399 No score

Moodle: password brute force risk when mobile/web services enabled

Moodle’s mobile and web service authentication endpoints did not sufficiently restrict repeated password attempts, making them susceptible to brute-force attacks.

Record: BIT-moodle-2025-62399
Updated: 2026-11-02

Affected products

moodle

Affected packages

Affected packages
Package	Affected	Fixed
`moodle/moodle` Packagist	5.0.0-beta up to 5.0.3	5.0.3
`moodle/moodle` Packagist	4.5.0-beta up to 4.5.7	4.5.7
`moodle/moodle` Packagist	4.2.0-beta up to 4.4.11	4.4.11
`moodle/moodle` Packagist	before 4.1.21	4.1.21
`moodle` Bitnami	4.1.0 up to 4.1.21, 4.4.0 up to 4.4.11, 4.5.0 up to 4.5.7, 5.0.0 up to 5.0.3	4.1.214.4.114.5.75.0.3
`moodle/moodle` Packagist	5.0.0-beta up to 5.0.3, plus listed versions v5.0.0v5.0.0-betav5.0.0-rc1v5.0.0-rc2v5.0.0-rc3v5.0.1v5.0.2	5.0.3
`moodle/moodle` Packagist	4.5.0-beta up to 4.5.7, plus listed versions v4.5.0v4.5.0-betav4.5.0-rc1v4.5.0-rc2v4.5.1 Show 5 moreShow less v4.5.2v4.5.3v4.5.4v4.5.5v4.5.6	4.5.7
`moodle/moodle` Packagist	4.2.0-beta up to 4.4.11, plus listed versions v4.2.0v4.2.0-betav4.2.0-rc1v4.2.0-rc2v4.2.1 Show 40 moreShow less v4.2.10v4.2.11v4.2.2v4.2.3v4.2.4v4.2.5v4.2.6v4.2.7v4.2.8v4.2.9v4.3.0v4.3.0-betav4.3.0-rc1v4.3.0-rc2v4.3.1v4.3.10v4.3.11v4.3.12v4.3.2v4.3.3v4.3.4v4.3.5v4.3.6v4.3.7v4.3.8v4.3.9v4.4.0v4.4.0-betav4.4.0-rc1v4.4.0-rc2v4.4.1v4.4.10v4.4.2v4.4.3v4.4.4v4.4.5v4.4.6v4.4.7v4.4.8v4.4.9	4.4.11
`moodle/moodle` Packagist	before 4.1.21, plus listed versions v2.3.10v2.3.11v2.3.4v2.3.5v2.3.6 Show 45 moreShow less v2.3.7v2.3.8v2.3.9v2.4.0v2.4.0-rc1v2.4.1v2.4.10v2.4.11v2.4.2v2.4.3v2.4.4v2.4.5v2.4.6v2.4.7v2.4.8v2.4.9v2.5.0v2.5.0-betav2.5.0-rc1v2.5.1v2.5.2v2.5.3v2.5.4v2.5.5v2.5.6v2.5.7v2.5.8v2.5.9v2.6.0v2.6.0-betav2.6.0-rc1v2.6.1v2.6.10v2.6.11v2.6.2v2.6.3v2.6.4v2.6.5v2.6.6v2.6.7v2.6.8v2.6.9v2.7.0v2.7.0-betav2.7.0-rc1	4.1.21
`moodle` Ubuntu:Pro:16.04:LTS	All versions, plus listed versions 2.7.9+dfsg-12.7.10+dfsg-12.7.11+dfsg-12.7.11+dfsg-22.7.12+dfsg-13.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1	None known
`moodle` Ubuntu:Pro:18.04:LTS	All versions, plus listed versions 3.0.3+dfsg-0ubuntu13.0.3+dfsg-0ubuntu1+esm1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2025-62399 is a high vulnerability (CVSS 7.5) in Moodle, published October 23, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.40%, the 34th percentile. Fixed in moodle/moodle 5.0.3.

References

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Left out here: 303 versions. The JSON record has them.