CVE-2026-85520Unauthenticated arbitrary file write leading to RCE in gmfeed PrestaShop module
Updated under an hour ago ()
Does this affect you?
It affects MyPresta Google Merchant Center Feed. Add what you run to find out whether that includes you.
EPSS puts the chance of exploitation in the next 30 days at 0.99%, higher than 61% of scored CVEs.
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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.
- CVSS
- 9.3 CRITICAL (v4.0, CNA)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
- Weakness (CWE)
- CWE-73
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- 0.99% (percentile 61)
- Assigned by
- CERT-PL
- NVD analysis
- Deferred
- Record last updated
- Sep 29, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
MyPresta Google Merchant Center Feed mypresta:google_merchant_center_feed (from the name) | from 1.9.1 through 2.3.8 | CNA record |
References
- https://cert.pl/en/posts/2026/09/CVE-2026-85520third-party-advisory
- https://mypresta.eu/news/google-merchant-center-security-fix-2026.htmlmitigation
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.