CVE-2026-84099CWE-502insecure-deserialization

CVE-2026-84099

High · published September 12, 2026

CVSS v3.1
8.1
EPSS
0%
Percentile
38.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.1 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00453 · 38.4th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-09-12T10:16Z
References (1)
EPSS history
Timeline
  • 13 SEP 03:23Z
    EPSS moved — → 0%
    epss
  • 12 SEP 06:00Z
    IDB Ecommerce (wpStoreCart 5) <= 5.0.7 - Unauthenticated PHP Object Injection via bundled wpsc-membership-pro paypal.php
    cvelistv5