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VulnerabilityPublished

CVE-2025-59017: TYPO3 CMS · Missing Authorization

Affects TYPO3 CMSSource CVE Database V5

0

Not known to be exploited · CVSS 5.3 Medium.

Data as of 26 Oct 2026, 09:08 UTC

CVSS 4.0 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 22% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 9 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
TYPO3 TYPO3 CMSAffected
  • =9.0.0
  • =10.0.0
  • =11.0.0
  • =12.0.0
  • =13.0.0
Fixed in–

AI-suggested

Organizations should immediately audit their TYPO3 CMS backend user roles and permissions to ensure the principle of least privilege is enforced, minimizing the number of users with backend access. Until an official patch is released, consider implementing additional access controls such as IP whitelisting for backend access, multi-factor authentication (MFA) for backend users, and monitoring/logging of backend AJAX route invocations to detect anomalous activity. Network segmentation can also help limit exposure of the backend interface. Administrators should stay alert for official TYPO3 security advisories and apply patches as soon as they become available. Additionally, reviewing custom extensions or plugins that interact with backend routes may help identify and mitigate any exacerbating factors. Employing a web application firewall (WAF) with custom rules to restrict unauthorized AJAX calls could provide a temporary protective layer.

Description

Missing authorization checks in the Backend Routing of TYPO3 CMS versions 9.0.0‑9.5.54, 10.0.0‑10.4.53, 11.0.0‑11.5.47, 12.0.0‑12.4.36, and 13.0.0‑13.4.17 allow backend users to directly invoke AJAX backend routes without having access to the corresponding backend modules.

References

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