🛡️ CVE-2025-59015 — typo3

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability none.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: Low — the attack works reliably, with no preparation.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: Low — limited, and the attacker does not choose what is affected.
• Integrity impact: Low — limited, and the attacker does not choose what is affected.
• Availability impact: None.

Weakness class

CVE-2025-59015 is classified as CWE-331: Insufficient Entropy. A generator is seeded with too little randomness, narrowing the range of outputs an attacker must search.

Affected software

CVE-2025-59015 is recorded against 2 packages.

• typo3 (from 13.0.0 up to 13.4.18)
• typo3/cms-core (from 13.0.0 up to 13.4.18)

Timeline and source

Published on 9 September 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.

References

typo3.org

Other advisories for this package

typo3 has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2026-6553 (7.5 High, published 21 Apr 2026)
• CVE-2025-59021 (6.4 Medium, published 13 Jan 2026)
• CVE-2025-59020 (6.5 Medium, published 13 Jan 2026)
• CVE-2026-0859 (7.8 High, published 13 Jan 2026)
• CVE-2025-59022 (8.1 High, published 13 Jan 2026)
• CVE-2025-59013 (6.1 Medium, published 9 Sep 2025)
• CVE-2025-59019 (4.3 Medium, published 9 Sep 2025)
• CVE-2025-59018 (6.5 Medium, published 9 Sep 2025)

Same weakness in other software

These advisories are the same class of weakness (CWE-331: Insufficient Entropy) in other software:

• CVE-2026-71851 (9.5 Critical, published 7 Aug 2026)
• CVE-2026-38447 (9.8 Critical, published 3 Aug 2026)
• CVE-2025-15629 (7.5 High, published 3 Aug 2026)
• CVE-2026-4932 (4.2 Medium, published 28 Jul 2026)
• CVE-2026-11403 (published 14 Jul 2026)
• CVE-2026-13199 (4.0 Medium, published 7 Jul 2026)
• CVE-2023-26154 (5.9 Medium, published 7 Jul 2026)
• CVE-2026-4930 (published 25 Jun 2026)

Details

Affected Packages

References