TI-2024-00635 Aliases CVE-2024-0689 GHSA-m39f-3w96-jj8p

Custom Field Suite <= 2.6.4 - Authenticated (Admin+) Stored Cross-Site Scripting

LOW 22CWE-79Published 2024-02-29 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: High
User interaction: Required
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 · NVD. 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 a meta import in all versions up to, and including, 2.6.4 due to insufficient input sanitization and output escaping on the meta values. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00339 27th 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: No
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 2.6.4	—	No fix listed	CNA

Custom Field Suite Vendormgibbs189 Affected up to 2.6.4 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::*	before 2.6.5	Vulnerable	mgibbs189

cpe:2.3:a:custom_field_suite_project:custom_field_suite:*:*:*:*:*:wordpress:*:* Versions before 2.6.5 Vulnerable ·mgibbs189

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-0689
2026-10-03 Alias added: GHSA-m39f-3w96-jj8p

References

Patch 1

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3042177%40custom-field-suite&new=3042177%40custom-field-suite&sfp_email=&sfph_mail=

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/d8e967ce-fd36-44de-acca-c1985642ee5b?source=cve

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-2024-03317 Custom Field Suite <= 2.6.7 - Authenticated (Contributor+) Stored Cross-Site Scripting via cfs[post_title] CVSS 3.1MEDIUM 6.4
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

See all 7 →

Sources

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