Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
Unknown Pixelavo — Pixelavo < 1.5.4 - Unauthenticated Facebook CAPI Event Injection via pixelavo_event AJAX
AV AC PR UI S C I A CVSS EPSS %ile KEV
N L N N U N L N 5.3 .0018 7.4 —
AFFECTED
Product Versions Fixed
Pixelavo unspecified —
TIMELINE
Jun 29 Reserved by WPScan
Aug 1 Published (CNA: WPScan)
Aug 4 EXPLOIT PUBLISHED — CVE-2026-13604 (Unknown Pixelavo). Public exploit reference added.
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.
Lifecycle
Complete event history — 3 events, chronological
| Date | Event | Detail |
| June 29, 2026 | Reserved | Reserved by WPScan |
| August 1, 2026 | Published | Published (CNA: WPScan) |
| August 4, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-13604 (Unknown Pixelavo). Public exploit reference added. |
Affected
Affected products and packages — 1 row
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
| Unknown | Pixelavo | — | — | — |
About this page
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-13604 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.