CVE-2026-13604 (GCVE-0-2026-13604)

Vulnerability from cvelistv5 – Published: 2026-08-01 06:00 – Updated: 2026-08-01 06:00
VLAI
Title
Pixelavo < 1.5.4 - Unauthenticated Facebook CAPI Event Injection via pixelavo_event AJAX
Summary
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.
Severity
No CVSS data available.
Assigner
References
URL Tags
https://wpscan.com/vulnerability/766c961e-e5aa-4e… exploitvdb-entrytechnical-description
Impacted products
Vendor Product Version
Unknown Pixelavo Affected: 0 , < 1.5.4 (semver)
Create a notification for this product.
Credits
Md Amin Ullah Sheikh WPScan
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Pixelavo",
          "vendor": "Unknown",
          "versions": [
            {
              "lessThan": "1.5.4",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Md Amin Ullah Sheikh"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "WPScan"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s stored access token. This allows an unauthenticated visitor to inject arbitrary conversion events into the administrator\u0027s Facebook ads account and exhaust the configured API quota."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-918 Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-01T06:00:12.337Z",
        "orgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
        "shortName": "WPScan"
      },
      "references": [
        {
          "tags": [
            "exploit",
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://wpscan.com/vulnerability/766c961e-e5aa-4ebe-8107-032f46316f91/"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "title": "Pixelavo \u003c 1.5.4 - Unauthenticated Facebook CAPI Event Injection via pixelavo_event AJAX",
      "x_generator": {
        "engine": "WPScan CVE Generator"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bfdd5d7-9bf6-4a53-96ea-42e2716d7a81",
    "assignerShortName": "WPScan",
    "cveId": "CVE-2026-13604",
    "datePublished": "2026-08-01T06:00:12.337Z",
    "dateReserved": "2026-06-29T08:27:24.366Z",
    "dateUpdated": "2026-08-01T06:00:12.337Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-13604",
      "date": "2026-08-03",
      "epss": "0.00132",
      "percentile": "0.03168"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-13604\",\"sourceIdentifier\":\"contact@wpscan.com\",\"published\":\"2026-08-01T07:16:29.457\",\"lastModified\":\"2026-08-01T07:16:29.457\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"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\u0027s stored access token. This allows an unauthenticated visitor to inject arbitrary conversion events into the administrator\u0027s Facebook ads account and exhaust the configured API quota.\"}],\"affected\":[{\"source\":\"contact@wpscan.com\",\"affectedData\":[{\"vendor\":\"Unknown\",\"product\":\"Pixelavo\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"0\",\"lessThan\":\"1.5.4\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://wpscan.com/vulnerability/766c961e-e5aa-4ebe-8107-032f46316f91/\",\"source\":\"contact@wpscan.com\"}]}}"
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

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Detection rules are retrieved from Rulezet.

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