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.
CVE-2025-59017
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 73% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EPSS
- 19.7%
- KEV
- Not listed
Published
September 9, 2025
Last Modified
September 10, 2025
References (1)
- f4fb688c-4412-4426-b4b8-421ecf27b14ahttps://typo3.org/security/advisory/typo3-core-sa-2025-021
Affected Packages
(5 across 1 ecosystem)
Packagist(5)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| typo3/cms-backend | v13.0.0 ... v13.4.9 (25 versions) | 13.4.18 | — |
| typo3/cms-beuser | v10.0.0 ... v9.5.9 (179 versions) | 12.4.37 | — |
| typo3/cms-dashboard | v13.0.0 ... v13.4.9 (25 versions) | 13.4.18 | — |
| typo3/cms-recycler | v13.0.0 ... v13.4.9 (25 versions) | 13.4.18 | — |
| typo3/cms-workspaces | v13.0.0 ... v13.4.9 (25 versions) | 13.4.18 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 41× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 14:08 UTCEPSS rescore
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- 2026-05-29 23:15 UTCEG score recompute
- 2026-05-29 13:44 UTCEPSS rescore
Related CVEs(same CWE)
Same CWE
10 shownCWE-862
Frequently asked(5)
What is CVE-2025-59017?
When was CVE-2025-59017 disclosed?
Is CVE-2025-59017 actively exploited?
What is the CVSS score of CVE-2025-59017?
How do I remediate CVE-2025-59017?
Dependency Blast Radius
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