TYPO3 Fluid-Form Extension up to 5.0.9/6.0.5 unrestricted upload

Summaryinfo

A vulnerability has been found in TYPO3 Fluid-Form Extension up to 5.0.9/6.0.5 and classified as critical. This vulnerability affects unknown code. Performing a manipulation results in unrestricted upload. This vulnerability was named CVE-2026-112240. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in TYPO3 Fluid-Form Extension up to 5.0.9/6.0.5. This affects an unknown part. The manipulation with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The download link for files uploaded through a form relied on a token that could be predicted. The file name in the request was also not verified in a way that resisted guessing. An unauthenticated attacker could use this to access files uploaded by other visitors. In addition, the token was shown in plain text in the text version of the notification email.

The advisory is shared at typo3.org. This vulnerability is uniquely identified as CVE-2026-112240 since 10/19/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

Upgrading to version 5.0.10 or 6.0.6 eliminates this vulnerability.

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Productinfo

Type

• Content Management System

Vendor

• TYPO3

Name

• Fluid-Form Extension

Version

• 5.0.0
• 5.0.1
• 5.0.2
• 5.0.3
• 5.0.4
• 5.0.5
• 5.0.6
• 5.0.7
• 5.0.8
• 5.0.9
• 6.0.0
• 6.0.1
• 6.0.2
• 6.0.3
• 6.0.4
• 6.0.5

License

• open-source

CPE 2.3info

• 🔒
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CPE 2.2info

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Entryinfo

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