How severe is CVE-2023-2439?

CVE-2023-2439 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-2023-2439 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-2439?

CVE-2023-2439 affects Userproplugin Userpro. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-2439?

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

Does CVE-2023-2439 have an EU (EUVD) identifier?

Yes. CVE-2023-2439 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-33924.

When was CVE-2023-2439 published?

CVE-2023-2439 was published on 2024-01-31 and last updated on 2026-06-17.

CVE-2023-2439

CVE-2023-2439 is a medium-severity vulnerability in Userproplugin Userpro 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% (25th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-33924
Weakness: CWE-79
Affected product: Userproplugin Userpro
Published: 2024-01-31
Last modified: 2026-06-17

Description

The UserPro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'userpro' shortcode in versions up to, and including, 5.1.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Frequently asked questions

What is CVE-2023-2439?: The UserPro plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'userpro' shortcode in versions up to, and including, 5.1.5 due to insufficient input sanitization and output escaping on user supplied attributes. This makes it possible for authenticated attackers with contributor-level and above permissions to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
How severe is CVE-2023-2439?: CVE-2023-2439 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-2023-2439 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (25th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-2439?: CVE-2023-2439 affects Userproplugin Userpro. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-2439?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-2439 have an EU (EUVD) identifier?: Yes. CVE-2023-2439 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-33924.
When was CVE-2023-2439 published?: CVE-2023-2439 was published on 2024-01-31 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:userproplugin:userpro:*:*:*:*:*:wordpress:*:*

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