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HIGH

CVE-2025-9816

CVSS v3

7.2

HIGH

EPSS Score

9.7 %

exploit probability, as of 2026-09-25

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

The WP Statistics – The Most Popular Privacy-Friendly Analytics Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the User-Agent Header in all versions up to, and including, 14.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Technical details

Published
2025-09-27

Frequently asked questions

What is CVE-2025-9816?

The WP Statistics – The Most Popular Privacy-Friendly Analytics Plugin plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the User-Agent Header in all versions up to, and including, 14.5.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.

Is CVE-2025-9816 actively exploited?

Active exploitation of CVE-2025-9816 has not been confirmed. Its EPSS score was 9.7% on 2026-09-25, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2025-9816?

CVE-2025-9816 has a CVSS v3 base score of 7.2 (HIGH severity).

Is CVE-2025-9816 affecting your environment?

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