CVE-2025-59013Network attack vector

Phishing redirects via faulty local-URL sanitization

Published Sep 9, 2025 · Updated Sep 9, 2025

Open redirect in TYPO3 CMS allows remote attackers to send users to arbitrary external sites through manipulated URLs. GeneralUtility::sanitizeLocalUrl fails to reject crafted external URLs as nonlocal, so applications that trust its result can redirect a browser off-site. Exploitation requires a deployment that uses the helper's output for a redirect and a user who follows the supplied URL; the resulting trusted-looking redirect supports phishing.

CVSS severity5.3
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Open redirect in TYPO3 CMS allows remote attackers to send users to arbitrary external sites through manipulated URLs. GeneralUtility::sanitizeLocalUrl fails to reject crafted external URLs as nonlocal, so applications that trust its result can redirect a browser off-site. Exploitation requires a deployment that uses the helper's output for a redirect and a user who follows the supplied URL; the resulting trusted-looking redirect supports phishing.

The record

CVE
CVE-2025-59013
Published
Sep 9, 2025
Updated
Sep 9, 2025
Vendor
in2code GmbH
Product
TYPO3 CMS
Classifications
CWE-601, T1204.001
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 9, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.0 <10.4.54
  2. Affected versionversion=11.0.0 <11.5.48
  3. Affected versionversion=12.0.0 <12.4.37
  4. Affected versionversion=13.0.0 <13.4.18
  5. Affected versionversion=9.0.0 <9.5.55

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

in2code GmbH · TYPO3 CMSversion=10.0.0 <10.4.54; version=11.0.0 <11.5.48; version=12.0.0 <12.4.37; version=13.0.0 <13.4.18; version=9.0.0 <9.5.55

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.3TYPO3CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-601URL Redirection to Untrusted Site ('Open Redirect')
T1204.001User Execution: Malicious Link

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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