CVE-2026-73364

WordPress Flexible Subscriptions plugin <= 1.8.1 - PHP Object Injection vulnerability

Published Aug 19, 2026 CVSS 3.1 · 9.8 Critical EPSS < 1% KEV · Not listed
Description
Customer PHP Object Injection in Flexible Subscriptions <= 1.8.1 versions.

Remediation

Vendor Solution

Update the WordPress Flexible Subscriptions Plugin to the latest available version (at least 1.8.2).

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Wordpress
Wordpress wordpress
Wpdesk
Wpdesk flexible Subscriptions
Vendors & Products Wordpress
Wordpress wordpress
Wpdesk
Wpdesk flexible Subscriptions
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description Customer PHP Object Injection in Flexible Subscriptions <= 1.8.1 versions.
Title WordPress Flexible Subscriptions plugin <= 1.8.1 - PHP Object Injection vulnerability
Weaknesses CWE-502
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Patchstack
Published
Updated
Aug 19, 2026, 7:29 PM
Reserved
Aug 12, 2026, 10:51 AM
Status
Deferred
Published
Aug 19, 2026, 1:18 PM
Modified
Aug 20, 2026, 12:48 PM