CVE-2026-112240 PUBLISHED

Broken Access Control in extension "TYPO3 Fluid-Form by coding.ms" (fluid_form)

Assigner: TYPO3
Reserved: 19.10.2026 Published: 20.10.2026 Updated: 20.10.2026

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.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
CVSS Score: 6.3

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	Low	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	Present	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

Product Status

Vendor	TYPO3
Product	Extension "TYPO3 Fluid-Form by coding.ms"
Versions	Default: unaffected affected from 6.0.0 to 6.0.6 (excl.) affected from 0 to 5.0.10 (excl.)

Credits

Thomas Deuling reporter
Thomas Deuling remediation developer

References

https://typo3.org/security/advisory/typo3-ext-sa-2026-033

Problem Types

CWE-639 Authorization Bypass Through User-Controlled Key CWE
CWE-338 Use of Cryptographically Weak Pseudo-Random Number Generator (PRNG) CWE