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CVE-2024-1894: Burst Statistics – Privacy-Friendly Analytics for WordPress <= 1.5.6.1 - Authenticated(Contributor+) Stored Cross-Site Scripting via burst_total_pageviews_count

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-03-13 · updated 2026-06-17
• Weakness: CWE-79

Description

The Burst Statistics – Privacy-Friendly Analytics for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'burst_total_pageviews_count' custom meta field in all versions up to, and including, 1.5.6.1 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. Note that this exploit only functions if the victim has the 'Show Toolbar when viewing site' option enabled in their profile.

Affected products

• burstbv Burst Statistics – Privacy-Friendly WordPress Analytics (Google Analytics Alternative): before 1.5.7 — fixed in 1.5.7

How to fix

Upgrade to a fixed version: burstbv Burst Statistics – Privacy-Friendly WordPress Analytics (Google Analytics Alternative) 1.5.7. Check the vendor advisory for mitigations.

References

• https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/class-frontend.php#L67
• https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/class-frontend.php#L74
• https://plugins.trac.wordpress.org/changeset?old_path=/burst-statistics/tags/1.5.6.1&old=3049793&new_path=/burst-statistics/tags/1.5.7&new=3049793&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/fa587df5-9d96-4cac-ae5d-2a0485a3a789?source=cve
• https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/class-frontend.php#L67
• https://plugins.trac.wordpress.org/browser/burst-statistics/trunk/class-frontend.php#L74
• https://plugins.trac.wordpress.org/changeset?old_path=/burst-statistics/tags/1.5.6.1&old=3049793&new_path=/burst-statistics/tags/1.5.7&new=3049793&sfp_email=&sfph_mail=
• https://www.wordfence.com/threat-intel/vulnerabilities/id/fa587df5-9d96-4cac-ae5d-2a0485a3a789?source=cve

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