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CVE-2026-85520

Unauthenticated arbitrary file write leading to RCE in gmfeed PrestaShop module

CVSS 4.0 9.3 CRITICALCheck source for fixed versionsKEV status unknown

Original advisory

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-85520

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-85520

Published

Google Merchant Center Feed

https://mypresta.eu/modules/social-networks/google-merchant-center-feed.html

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "MyPresta",
                    "product": "Google Merchant Center Feed",
                    "collectionURL": "https://mypresta.eu/modules/social-networks/google-merchant-center-feed.html",
                    "versions": [
                        {
                            "status": "affected",
                            "version": "1.9.1",
                            "lessThanOrEqual": "2.3.8",
                            "versionType": "semver"
                        }
                    ],
                    "defaultStatus": "unaffected"
                }

Original source record · Cite this exact observation · Complete original publisher JSON