CVE-2026-4303
MediumVulnerability Description
The WP Visitor Statistics (Real Time Traffic) plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the plugin's 'wsm_showDayStatsGraph' shortcode in all versions up to, and including, 8.4 due to insufficient input sanitization and output escaping on user supplied attributes. 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.
CVSS Metrics
Common Vulnerability Scoring System
Vector String:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
References & Resources
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https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/wsm_init.php#L208security@wordfence.com
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https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/wsm_statistics.php#L2272security@wordfence.com
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https://plugins.trac.wordpress.org/browser/wp-stats-manager/tags/8.4/includes/wsm_statistics.php#L2392security@wordfence.com
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https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_init.php#L208security@wordfence.com
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https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_statistics.php#L2272security@wordfence.com
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https://plugins.trac.wordpress.org/browser/wp-stats-manager/trunk/includes/wsm_statistics.php#L2392security@wordfence.com
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https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3498538%40wp-stats-manager&new=3498538%40wp-stats-manager&sfp_email=&sfph_mail=security@wordfence.com
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https://www.wordfence.com/threat-intel/vulnerabilities/id/3b6916d3-3944-43a2-8d5e-424f86c753ad?source=cvesecurity@wordfence.com
Severity Details
Weakness Type (CWE)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Description
- The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
- Exploit Likelihood
- High
- Typical Severity
- Medium
- OWASP Top 10
- A03:2021-Injection
- Abstraction Level
- Base
Key Information
- Published Date
- April 08, 2026
