CVE Catalog

CVE-2026-13604

MediumCVSS 5.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.17%

7th percentile - higher than 7% of all known CVEs

Summary

The Pixelavo WordPress plugin before version 1.5.4 registers an unauthenticated AJAX action, gated only by a nonce that it emits publicly on every front-end page. This action forwards client-supplied event data to the configured Facebook Conversions API using the administrator's stored access token. This allows an unauthenticated visitor to inject arbitrary conversion events into the administrator's Facebook ads account and exhaust the configured API quota.

Risk Assessment

Risk of exhausting the Facebook Conversions API quota and polluting conversion data, potentially leading to incorrect reports and financial losses.

Recommendation

Update the Pixelavo plugin to version 1.5.4 or later.

Related vulnerabilities

Original NVD description (English source)

The Pixelavo WordPress plugin before 1.5.4 registers an unauthenticated AJAX action, gated only by a nonce that it emits publicly on every front-end page, that forwards client-supplied event data to the configured Facebook Conversions API using the administrator's stored access token. This allows an unauthenticated visitor to inject arbitrary conversion events into the administrator's Facebook ads account and exhaust the configured API quota.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS