PrestaShop Checkout Target PayPal merchant account hijacking from backoffice
Impact
Wrong usage of the PHP array_search() allows bypass of validation.
Patches
The problem has been patched in versions:
- v4.4.1 for PrestaShop 1.7 (build number: 7.4.4.1)
- v4.4.1 for PrestaShop 8 (build number: 8.4.4.1)
- v5.0.5 for PrestaShop 1.7 (build number: 7.5.0.5)
- v5.0.5 for PrestaShop 8 (build number: 8.5.0.5)
- v5.0.5 for PrestaShop 9 (build number: 9.5.0.5)
Read the Versioning policy to learn more about the build number.
Credits
Léo CUNÉAZ reported this issue.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | prestashop/ps_checkout | < 4.4.1, >= 5.0.0, < 5.0.5 | 4.4.1, 5.0.5 |
| PrestaShop module | prestashop/ps_checkout | < 4.4.1, >= 5.0.0, < 5.0.5 | 4.4.1, 5.0.5 |
References
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N- Weakness (CWE)
CWE-184- Platform
- Composer, PrestaShop
- Package
prestashop/ps_checkout- Disclosed
- 16.10.2025
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-wvpg-4wrh-5889 - CC BY 4.0
Vulnerability history: prestashop/ps_checkout
All published vulnerabilities of this package (PrestaShop module), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 4
- First → latest
- 10.2025 04.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- Medium 1
- Low 2
Disclosures per year
- 2025: 3
- 2026: 1
-
PrestaShop Checkout Target PayPal merchant account hijacking from backoffice this entry
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