CVE-2026-85520
Unauthenticated arbitrary file write leading to RCE in gmfeed PrestaShop module
- State
- Published
- Severity
- 9.3 Critical
- Published
- Sep 29, 2026
- Updated
- Sep 29, 2026
- Reserved
- Sep 4, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 9.3 Critical | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L | CERT-PL |
Weaknesses
- CWE-73 External control of file name or path
Affected Products
| Product | Versions |
|---|---|
Google Merchant Center FeedMyPresta |
|
References
- https://cert.pl/en/posts/2026/09/CVE-2026-85520third-party-advisory
- https://mypresta.eu/news/google-merchant-center-security-fix-2026.htmlmitigation
Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.