TI-2024-03317 Aliases CVE-2024-3558 GHSA-r49q-p832-vm3j

Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_title]

LOW 35CWE-79Published 2024-06-20 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Impact type: Cross-site scripting
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-79.

Summary

The Custom Field Suite plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the the 'cfs[post_title]' parameter versions up to, and including, 2.6.7 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00413 35th percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by NVD

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
mgibbs189	Custom Field Suite	up to 2.6.7	—	No fix listed	CNA

Custom Field Suite Vendormgibbs189 Affected up to 2.6.7 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:custom_field_suite_project:custom_field_suite::::::wordpress::*	up to 2.6.7	Vulnerable	mgibbs189

cpe:2.3:a:custom_field_suite_project:custom_field_suite:*:*:*:*:*:wordpress:*:* Versions up to 2.6.7 Vulnerable ·mgibbs189

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-3558
2026-10-03 Alias added: GHSA-r49q-p832-vm3j

References

Exploit 1

https://mgibbs189.github.io/custom-field-suite/

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/8e4dc6fd-4bd5-4ed1-ade0-cf2f8831fac3?source=cve

Other 6

TI-2024-03321 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) PHP Code Injection via Loop Custom Field CVSS 3.1HIGH 8.8
TI-2024-03320 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) SQL Injection via Term Custom Field CVSS 3.1HIGH 8.8
TI-2024-03318 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_content] CVSS 3.1MEDIUM 6.4
TI-2023-15797 WordPress Custom Field Suite Plugin <= 2.6.2.1 is vulnerable to Cross Site Scripting (XSS) CVSS 3.1MEDIUM 5.9
TI-2019-08900 The Custom Field Suite plugin before 2.5.15 for WordPress has XSS for editors or admins. CVSS 3.0MEDIUM 5.4
TI-2024-02874 Custom Field Suite <= 2.6.5 - Authenticated (Admin+) Stored Cross-Site Scripting CVSS 3.1MEDIUM 4.8

See all 7 →

Sources

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