CVE-2026-5231

WP Statistics <= 14.16.4 - Unauthenticated Stored Cross-Site Scripting via 'utm_source' Parameter

HIGH
7.2
CVSS Score
Published: April 17, 2026 at 01:24 AM UTC
Updated: June 17, 2026 at 10:58 AM UTC
1 product affected across 1 vendorWP Statistics

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Severity
HIGH7.2
Exploit prediction
EPSS 0.5%
SSVC
No known exploit

Description

The WP Statistics plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'utm_source' parameter in all versions up to, and including, 14.16.4. This is due to insufficient input sanitization and output escaping. The plugin's referral parser copies the raw utm_source value into the source_name field when a wildcard channel domain matches, and the chart renderer later inserts this value into legend markup via innerHTML without escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in admin pages that will execute whenever an administrator accesses the Referrals Overview or Social Media analytics pages.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

60%
v ≤ 14.16.4

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.2HIGHWordfence
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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