Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TYPO3 | Extension "TYPO3 Shop by coding.ms" | 6.0.0 – < 6.3.0, 5.0.0 – < 5.21.1, < 4.9.4 | 6.3.0 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
GitHub 1 repository
-
yuwkaaa/CVE-2026-113468 ★ 0 · Oct 20, 2026
forgeable PayPal payment callback in TYPO3 EXT:shop
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- WID-SEC-2026-4053 TYPO3 Extensions: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 20, 2026
References
- https://typo3.org/security/advisory/typo3-ext-sa-2026-036 vendor-advisory