CVE-2026-73364CWE-502insecure-deserialization

CVE-2026-73364

Critical · published August 19, 2026

CVSS v3.1
9.8
EPSS
1%
Percentile
46.1
In the wild
Unconfirmed
What it is

Customer PHP Object Injection in Flexible Subscriptions <= 1.8.1 versions.

The record
Technical detail
CVSS v3.1
9.8 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00564 · 46.1th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-08-19T17:18Z
References (1)
https://patchstack.com/database/wordpress/plugin/flexible-subscriptions/vulnerability/wordpress-flexible-subscriptions-plugin-1-8-1-php-object-injection-vulnerability?_s_id=cve · [email protected]
EPSS history
Timeline
  • 19 AUG 12:38Z
    WordPress Flexible Subscriptions plugin <= 1.8.1 - PHP Object Injection vulnerability
    cvelistv5