VULNERABILITY INTELLIGENCE
CVE-2026-13604
CVSS score5.3 MEDIUM
EPSS probability0.29%
CISA KEVNot currently listed
Published2026-08-01
Last modified2026-08-26
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Description
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.
Weakness classification
- 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-918