How severe is CVE-2025-59021?

CVE-2025-59021 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-59021 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-59021?

CVE-2025-59021 affects Typo3. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-59021?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-59021 have an EU (EUVD) identifier?

Yes. CVE-2025-59021 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2089.

When was CVE-2025-59021 published?

CVE-2025-59021 was published on 2026-01-13 and last updated on 2026-06-17.

CVE-2025-59021

CVE-2025-59021 is a medium-severity vulnerability in Typo3 with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
CVSS v4: 5.3
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-2089
Weakness: CWE-862
Affected product: Typo3
Published: 2026-01-13
Last modified: 2026-06-17

Description

Backend users with access to the redirects module and write permission on the sys_redirect table were able to read, create, and modify any redirect record without restriction to the user’s own file-mounts or web-mounts. This allowed attackers to insert or alter redirects pointing to arbitrary URLs – facilitating phishing or other malicious redirect attacks. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.

Frequently asked questions

What is CVE-2025-59021?: Backend users with access to the redirects module and write permission on the sys_redirect table were able to read, create, and modify any redirect record without restriction to the user’s own file-mounts or web-mounts. This allowed attackers to insert or alter redirects pointing to arbitrary URLs – facilitating phishing or other malicious redirect attacks. This issue affects TYPO3 CMS versions 10.0.0-10.4.54, 11.0.0-11.5.48, 12.0.0-12.4.40, 13.0.0-13.4.22 and 14.0.0-14.0.1.
How severe is CVE-2025-59021?: CVE-2025-59021 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-59021 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-59021?: CVE-2025-59021 affects Typo3. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-59021?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-59021 have an EU (EUVD) identifier?: Yes. CVE-2025-59021 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-2089.
When was CVE-2025-59021 published?: CVE-2025-59021 was published on 2026-01-13 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:typo3:typo3:*:*:*:*:*:*:*:*

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