CVE-2026-113468 PUBLISHED

Broken Access Control in extension "TYPO3 Shop by coding.ms" (shop)

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

The payment notification endpoint for PayPal accepts incoming data without verifying that it comes from the payment provider. Any site visitor can overwrite the stored payment notification of an order that is still awaiting payment with arbitrary content. This requires a page that contains the shop's order plugin. Orders that are already paid are not affected.

Metrics

CVSS 4.0

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS Score: 6.9

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	None

CVSS 4.0

Product Status

Vendor	TYPO3
Product	Extension "TYPO3 Shop by coding.ms"
Versions	Default: unaffected affected from 6.0.0 to 6.3.0 (excl.) affected from 5.0.0 to 5.21.1 (excl.) affected from 0 to 4.9.4 (excl.)

Credits

Nguyen Le Thanh Nam reporter
Thomas Deuling remediation developer

References

https://typo3.org/security/advisory/typo3-ext-sa-2026-036

Problem Types

CWE-862 Missing Authorization CWE