CVE-2026-84186 (GCVE-0-2026-84186)

Vulnerability from cvelistv5 – Published: 2026-09-07 08:39 – Updated: 2026-09-08 15:02
VLAI
Title
Incorrect access control in PrestaShop
Summary
Vulnerability involving incorrect access control in the Tools::getRemoteAddr() function in PrestaShop, which allows the client’s IP address to be spoofed via the X-Forwarded-For header when the application is running behind a reverse proxy, load balancer or CDN. The application incorrectly processes the IP address string and uses the address controlled by the visitor rather than the one provided by the trusted infrastructure, allowing an unauthenticated remote attacker to cause the application to interpret their connection as originating from an arbitrary IP address. This condition allows IP-based controls, such as the maintenance mode allowlist, to be bypassed, as well as enabling the forgery of security and audit logs and the evasion of third-party mechanisms that rely on the IP address, such as geolocation checks, fraud detection or request throttling.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-08 15:02 UTC
CWE
  • CWE-290 - Authentication bypass by spoofing
Assigner
INCIBE CNA under the INCIBE root
CNA scorecard B 85/100 over 151 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
PrestaShop PrestaShop Affected: 0 , < 9.1.5 (custom)
Affected: 0 , < 8.2.8 (custom)
    cpe:2.3:a:prestashop:prestashop:*:*:*:*:*:*:*:*
    cpe:2.3:a:prestashop:prestashop:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-07 08:37
Credits
Pedro Gabaldón Juliá
Show details on NVD website
To clipboard 

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