How severe is CVE-2024-5439?

CVE-2024-5439 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-2024-5439 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-5439?

CVE-2024-5439 affects Creativethemes Blocksy. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-5439?

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

Does CVE-2024-5439 have an EU (EUVD) identifier?

Yes. CVE-2024-5439 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46661.

When was CVE-2024-5439 published?

CVE-2024-5439 was published on 2024-06-05 and last updated on 2026-06-17.

CVE-2024-5439

CVE-2024-5439 is a medium-severity vulnerability in Creativethemes Blocksy 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-20.

Key facts

Severity: Medium (CVSS 3.x base score 6.4)
EPSS exploit prediction: 0% (21st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-46661
Weakness: CWE-20
Affected product: Creativethemes Blocksy
Published: 2024-06-05
Last modified: 2026-06-17

Description

The Blocksy theme for WordPress is vulnerable to Reflected Cross-Site Scripting via the custom_url parameter in all versions up to, and including, 2.0.50 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Frequently asked questions

What is CVE-2024-5439?: The Blocksy theme for WordPress is vulnerable to Reflected Cross-Site Scripting via the custom_url parameter in all versions up to, and including, 2.0.50 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.
How severe is CVE-2024-5439?: CVE-2024-5439 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-2024-5439 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (21st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-5439?: CVE-2024-5439 affects Creativethemes Blocksy. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-5439?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2024-5439 have an EU (EUVD) identifier?: Yes. CVE-2024-5439 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-46661.
When was CVE-2024-5439 published?: CVE-2024-5439 was published on 2024-06-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:creativethemes:blocksy:*:*:*:*:*:wordpress:*:*

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