CVE-2025-59015

Insufficient Entropy in Password Generation

6.3 MediumFix available

A deterministic three‑character prefix in the Password Generation component of TYPO3 CMS versions 12.0.0–12.4.36 and 13.0.0–13.4.17 reduces entropy, allowing attackers to carry out brute‑force attacks more quickly.

Attack profile

How easy it is to exploit

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

What an attacker can affect

Confidentiality: Low
Integrity: Low
Availability: None

Exploit likelihood

0.19%Up 0.1 points since Sep 9, 2025

What each source reports

CVE List Score used 6.3

Insufficient Entropy in Password Generation

Record: CVE-2025-59015
CVSS 4.0: 6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-331
Updated: 2026-11-02

EUVDEUVD-2025-27230 6.3

Record: EUVD-2025-27230
CVSS 4.0: 6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-p5jq-5383-qvc7 6.3

TYPO3 CMS uses insufficient entropy when generating passwords

Record: GHSA-p5jq-5383-qvc7
CVSS 4.0: 6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-331
Updated: 2026-11-02

NVD 6.3

Record: CVE-2025-59015
CVSS 4.0: 6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-331
Updated: 2026-11-02

OSV 6.3

Insufficient Entropy in Password Generation

Record: CVE-2025-59015
CVSS 4.0: 6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness: CWE-331
Updated: 2026-11-02

OSVGHSA-p5jq-5383-qvc7 6.3

TYPO3 CMS uses insufficient entropy when generating passwords

Record: GHSA-p5jq-5383-qvc7
CVSS 4.0: 6.3 MediumCVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1: 6.5 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness: CWE-331
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`typo3/cms-core` Packagist	12.0.0 up to 12.4.37	12.4.37
`typo3/cms-core` Packagist	13.0.0 up to 13.4.18	13.4.18
`typo3/cms-core` Packagist	12.0.0 up to 12.4.37, plus listed versions v12.0.0v12.1.0v12.1.1v12.1.2v12.1.3 Show 39 moreShow less v12.2.0v12.3.0v12.4.0v12.4.1v12.4.10v12.4.11v12.4.12v12.4.13v12.4.14v12.4.15v12.4.16v12.4.17v12.4.18v12.4.19v12.4.2v12.4.20v12.4.21v12.4.22v12.4.23v12.4.24v12.4.25v12.4.26v12.4.27v12.4.28v12.4.29v12.4.3v12.4.30v12.4.31v12.4.32v12.4.33v12.4.34v12.4.35v12.4.36v12.4.4v12.4.5v12.4.6v12.4.7v12.4.8v12.4.9	12.4.37
`typo3/cms-core` Packagist	13.0.0 up to 13.4.18, plus listed versions v13.0.0v13.0.1v13.1.0v13.1.1v13.2.0 Show 21 moreShow less v13.2.1v13.3.0v13.3.1v13.4.0v13.4.1v13.4.10v13.4.11v13.4.12v13.4.13v13.4.14v13.4.15v13.4.16v13.4.17v13.4.2v13.4.3v13.4.4v13.4.5v13.4.6v13.4.7v13.4.8v13.4.9	13.4.18

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-2025-59015 is a medium vulnerability (CVSS 6.3) in Typo3, published September 9, 2025. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.19%, the 8th percentile. Fixed in typo3/cms-core 12.4.37.