CVE-2026-113442 PUBLISHED

Cross-Site Scripting in extension "TYPO3 Fluid-Form by coding.ms" (fluid_form)

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

Values entered by visitors were placed into the HTML summary email without being escaped. An unauthenticated attacker could use this to inject HTML into an email that is shown to the recipient.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 5.3

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

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-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') CWE