CVE-2026-85520
Critical
Description
Google Merchant Center Feed (gmfeed) module for PrestaShop is vulnerable to unauthenticated arbitrary file write in the feed.php endpoint. An unauthenticated attacker can send a crafted request that controls the output file name, path, extension, and content through request parameters. Due to the lack of authentication and input validation, the request is processed successfully, allowing an attacker to write and execute arbitrary PHP code, resulting in remote code execution (RCE). This issue was fixed in version 2.3.9.
SeverityCritical
CVSS9.3
Exploit probability—
ProductGoogle Merchant Center Feed
PublishedSep 29, 2026
First seenSep 29, 2026
Weakness typeCWE-73CWE-73
How to fix
Vendor advisories
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| MyPresta Google Merchant Center Feed | 1.9.1 ≤ v ≤ 2.3.8 | — |
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