Reading a file through path traversal & Remote Code Execution via unsafe deserialization
Initialy flagged as path traversal with a medium severity, the work of Friends Of Presta Security team proven the ability to use this vulnerability to implicity deserialize a malicious load (critical severity).
displayAjaxEmailHTML method can be used to read any file on the server, potentially even outside of the project if the server is not correctly configured.
Moreover, any wrapper like https, ftp, phar, … can be exploited to forge a SSRF (server side request forgery). The ability to use phar:// can be exploited to forge an unserialization as proven in our security research advisory “Exploring the perils of implicit deserialization of a phar in PrestaShop (part 2)”
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Composer package | prestashop/prestashop | < 8.1.1 | 8.1.1 |
| PrestaShop (core) | PrestaShop | <= 8.1.0 <= 8.1.0 (Patched versions 8.1.1) |
no fix |
References
- https://security.friendsofpresta.org/core/2023/09/06/core-CVE-2023-39528.html
- https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-hpf4-v7v2-95p2
- https://nvd.nist.gov/vuln/detail/CVE-2023-39528
- https://github.com/PrestaShop/PrestaShop/commit/11de3a84322fa4ecd0995ac40d575db61804724c
- https://github.com/PrestaShop/PrestaShop
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H- Weakness (CWE)
CWE-22, CWE-502- Platform
- Composer, PrestaShop
- Package
prestashop/prestashop, PrestaShop- Disclosed
- 07.08.2023
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-hpf4-v7v2-95p2 - CC BY 4.0
Friends-Of-Presta - CVE-2023-39528 - MIT
MIT
The MIT License (MIT) Copyright (c) 2016-present Parker Moore and the minima contributors Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Vulnerability history: prestashop/prestashop
All published vulnerabilities of this package (Composer package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 31
- First → latest
- 12.2021 05.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 5
- High 8
- Medium 17
- Low 1
Disclosures per year
- 2021: 1
- 2022: 10
- 2023: 10
- 2024: 5
- 2025: 1
- 2026: 4
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Reading a file through path traversal & Remote Code Execution via unsafe deserialization this entry
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