# TYPO3 CMS uses insufficient entropy when generating passwords

Advisory record · `GHSA-p5jq-5383-qvc7`

- **Identifiers:** `GHSA-p5jq-5383-qvc7` · `CVE-2025-59015` · `PKSA-rwv7-ff55-f18g`
- **State:** Confirmed
- **Severity:** CVSS 6.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-331](https://cwe.mitre.org/data/definitions/331.html)
- **Tags:** [CWE-331](https://agentprime.io/advisories/tag/cwe-331.md)
- **Published:** 9 Sept 2025
- **Updated:** 10 Sept 2025
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 9 Sept 2025, 09:31 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `typo3/cms-core` (Packagist): affected `>=12.0.0, <12.4.37 || >=13.0.0, <13.4.18`; fixed in `12.4.37`, `13.4.18`

## Machine-written summary

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

> TYPO3 CMS (typo3/cms-core) versions 12.0.0 to before 12.4.37 and 13.0.0 to before 13.4.18 generate passwords with insufficient entropy, because a deterministic three-character prefix is included. This makes brute-force attacks faster. The source does not state what access an attacker needs. Upgrade to 12.4.37 or 13.4.18; no workaround is listed.

Written 3 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

- 6.3 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`, from CNA (TYPO3)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0019, the 8th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:26 UTC: First seen by agentprime
- 31 Oct 2026, 14:26 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-p5jq-5383-qvc7)

## Sources

- [GitHub Advisory Database: GHSA-p5jq-5383-qvc7](https://github.com/advisories/GHSA-p5jq-5383-qvc7)
- [OSV: GHSA-p5jq-5383-qvc7](https://osv.dev/vulnerability/GHSA-p5jq-5383-qvc7)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-59015>
- <https://github.com/TYPO3-CMS/core/commit/d2057cc7b2c2db417a2af38c30cb9da42302ab70>
- <https://github.com/TYPO3-CMS/core>
- <https://typo3.org/security/advisory/typo3-core-sa-2025-019>

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.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-p5jq-5383-qvc7>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-p5jq-5383-qvc7/>. Everything for agents: <https://agentprime.io/llms.txt>.