High severity · published Sep 12, 2026
CVE-2026-84099
IDB Ecommerce (wpStoreCart 5) <= 5.0.7 - Unauthenticated PHP Object Injection via bundled wpsc-membership-pro paypal.php
8.1
CVSS
0.5%
EPSS
No
On KEV
Description
The wpstorecart WordPress plugin through 5.0.7 does not prevent direct, unauthenticated access to a bundled add-on that deserializes user-supplied input without restricting the permitted classes, allowing unauthenticated attackers to inject arbitrary PHP objects, which may be escalated further when a suitable gadget chain is present on the site.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 39% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WP
wpstorecart ·
through 5.0.7 · source: vendor