8.8

CVE-2025-59017: Broken Access Control in Backend AJAX Routes

Analyzed
Published 09-09-2025Last modified 09-09-2025

Vulnerability summary

CVE-2025-59017 is a high (CVSS 8.8) Missing Authorization vulnerability in typo3. EPSS estimates a 0.30% chance of exploitation in the next 30 days, higher than 23% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 5.3, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
0.30%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Timeline

  1. 09-09-2025
    PublishedVulnerability first disclosed.
  2. 09-09-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.30%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.30% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Typo32 products
  • typo3≥ 9.0.0, < 9.5.55 | ≥ 10.0.0, < 10.4.54 | ≥ 11.0.0, < 11.5.48 | ≥ 12.0.0, < 12.4.37 | ≥ 13.0.0, < 13.4.18
  • typo3 cms≥ 9.0.0, < 9.5.55 | ≥ 10.0.0, < 10.4.54 | ≥ 11.0.0, < 11.5.48 | ≥ 12.0.0, < 12.4.37 | ≥ 13.0.0, < 13.4.18

1 vendor · 2 products

References

1 links