Vulnerability · Published Oct 20, 2026 · Assigned by TYPO3

CVE-2026-112240Broken Access Control in extension "TYPO3 Fluid-Form by coding.ms" (fluid_form)

Medium 6.3

In plain English

A medium-severity authorization bypass via user-controlled key in Extension "TYPO3 Fluid-Form by coding.ms" from TYPO3. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 33% of all known vulnerabilities).

Severity (CVSS 4.0)6.3Medium

Exploit odds (30 days)0.4%top 67.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
TYPO3	Extension "TYPO3 Fluid-Form by coding.ms"	6.0.0 – before 6.0.60 – before 5.0.10

Weakness: CWE-639, CWE-338 · 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

References

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