CVE-2026-13604
MEDIUMPixelavo < 1.5.4 - Unauthenticated Facebook CAPI Event Injection via pixelavo_event AJAX
Title source: cnaDescription
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.
References (1)
Core 1
Core References
Exploit exploit
vdb-entry
technical-description
https://wpscan.com/vulnerability/766c961e-e5aa-4ebe-8107-032f46316f91/
Scores
CVSS v3
5.3
EPSS
0.0018
EPSS Percentile
7.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-918
Status
published
Products (1)
None/Pixelavo
< 1.5.4
Published
Aug 01, 2026
Tracked Since
Aug 01, 2026