How severe is CVE-2024-3558?

CVE-2024-3558 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2024-3558 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-3558?

CVE-2024-3558 affects Custom Field Suite Project Custom Field Suite. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-3558?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2024-3558 have an EU (EUVD) identifier?

Yes. CVE-2024-3558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-32144.

When was CVE-2024-3558 published?

CVE-2024-3558 was published on 2024-06-20 and last updated on 2026-06-17.

CVE-2024-3558

CVE-2024-3558 is a medium-severity vulnerability in Custom Field Suite Project Custom Field Suite with a CVSS 3.x base score of 6.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (33rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-32144
Weakness: CWE-79
Affected product: Custom Field Suite Project Custom Field Suite
Published: 2024-06-20
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2024-3558?: 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.
How severe is CVE-2024-3558?: CVE-2024-3558 has a CVSS 3.x base score of 6.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2024-3558 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (33rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-3558?: CVE-2024-3558 affects Custom Field Suite Project Custom Field Suite. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-3558?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-3558 have an EU (EUVD) identifier?: Yes. CVE-2024-3558 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-32144.
When was CVE-2024-3558 published?: CVE-2024-3558 was published on 2024-06-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:custom_field_suite_project:custom_field_suite:*:*:*:*:*:wordpress:*:*

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