GHSA-45vm-3j38-7p78
PrestaShop cross-site scripting via customer contact form in FO, through file upload
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | prestashop/prestashop | >= 8.1.0, < 8.1.6 | 8.1.6 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
Only PrestaShops with customer-thread feature flag enabled are impacted, starting from PrestaShop 8.1.0.
The impact is substantial, when the customer thread feature flag is enabled, through the front-office contact form, a hacker can upload a malicious file containing an XSS that will be executed when an admin opens the attached file in back office.
Consequence: the script injected can access the session and the security token, which allows it to perform any authenticated action in the scope of the administrator's right.
### Patches
This vulnerability is patched in 8.1.6.
### Workarounds
As long as you have not upgraded to 8.1.6, a simple workaround is to disable the customer-thread feature-flag.
Thank you to Ayoub AIT ELMOKHTAR, who discovered this vulnerability and share it with the PrestaShop team.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/PrestaShop/PrestaShop/security/advisories/GHSA-45vm-3j38-7p78
- https://nvd.nist.gov/vuln/detail/CVE-2024-34716
- https://github.com/PrestaShop/PrestaShop/commit/a248898655e56cbcc6c308a5f1c8752231624bae
- https://github.com/PrestaShop/PrestaShop
- https://github.com/PrestaShop/PrestaShop/releases/tag/8.1.6