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Medium 5.3Published Aug 1, 2026

CVE-2026-13604Pixelavo < 1.5.4 - Unauthenticated Facebook CAPI Event Injection via pixelavo_event AJAX

Updated under an hour ago ()

Does this affect you?

It affects Unknown Pixelavo. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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.

CVSS
5.3 MEDIUM (v3.1, CISA ADP)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-918
Known exploited
Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days)
Not loaded for this CVE
Assigned by
WPScan
NVD analysis
Deferred
Record last updated
Aug 5, 2026
First seen by InfoSec Signals
Oct 9, 2026

Affected products

Affected products
Unknown Pixelavo
unknown:pixelavo (from the name)
before 1.5.4
CNA record

References

  • exploit, vdb-entry, technical-description

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.

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