TI-2026-02857 Aliases CVE-2026-3309 GHSA-76wj-rr8p-qvr3

Code injection in properfraction Paid Membership Plugin, Ecommerce, User Registration…

LOW 35CWE-94Published 2026-04-04 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-94.

Summary

The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to arbitrary shortcode execution in all versions up to, and including, 4.16.11. This is due to the plugin allowing user-supplied billing field values from the checkout process to be interpolated into shortcode template strings that are subsequently processed without proper sanitization of shortcode syntax. This makes it possible for unauthenticated attackers to execute arbitrary shortcodes by submitting crafted billing field values during the checkout process.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00414 35th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
properfraction	Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress	up to 4.16.11	—	No fix listed	CNA

Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress Vendorproperfraction Affected up to 4.16.11 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:properfraction:profilepress::::::::	—	—	properfraction

cpe:2.3:a:properfraction:profilepress:*:*:*:*:*:*:*:* Versions — — ·properfraction

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-3309
2026-10-03 Alias added: GHSA-76wj-rr8p-qvr3

References

Other 2

TI-2021-13635 ProfilePress 3.0 - 3.1.3 - Unauthenticated Privilege Escalation CVSS 3.1CRITICAL 9.8
TI-2021-13638 ProfilePress 3.0 - 3.1.3 - Arbitrary File Upload in File Uploader Component CVSS 3.1CRITICAL 9.8
TI-2021-13637 ProfilePress 3.0 - 3.1.3 - Arbitrary File Upload in Image Uploader Component CVSS 3.1CRITICAL 9.8
TI-2021-13636 ProfilePress 3.0 - 3.1.3 - Authenticated Privilege Escalation CVSS 3.1CRITICAL 9.8
TI-2024-12168 ProfilePress < 4.15.20 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
TI-2024-12167 ProfilePress < 4.15.20 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8

See all 63 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences