# CVE-2026-85400

## Summary

- **CVE ID:** CVE-2026-85400
- **Severity:** HIGH
- **CVSS Score:** 7.5 (CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-862, CWE-266
- **Published:** Sep 8, 2026
- **Last Modified:** Sep 8, 2026

## Description

Backend administrators without system maintainer privileges were able to schedule any of the configuration:read, configuration:set, and configuration:show commands. This allowed them to modify arbitrary system configuration, which is normally limited to system maintainers. As a consequence, this allowed them, for example, to gain system maintainer privileges or cause a denial of service. Exploiting this vulnerability requires an administrator-level backend user account. This issue affects TYPO3 CMS versions 14.2.0-14.3.6.

## Affected Products

- TYPO3 — TYPO3 CMS (14.2.0)

## References

- [CNA](https://news.typo3.com/security/advisory/typo3-core-sa-2026-023)
- [CNA](https://github.com/TYPO3/typo3/commit/b8abe36978c63a0625aee70df078895216e7ee27)
- [CNA](https://github.com/TYPO3/typo3/commit/e15da7ba0218532240578b471152f76c13cb4154)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.44%
- **EPSS Percentile:** 36.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._