CVE-2026-4082
The ER Swiffy Insert plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [swiffy] shortcode in all versions up to and including 1.0.0. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes ('n', 'w', 'h'). These attributes are extracted using extract() and directly interpolated into the HTML output without any escaping such as esc_attr(). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
- Puntuación base: 6.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.33%
- Percentil entre todas las CVEs puntuadas: 24
- Fecha de la puntuación: 6/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (1)
⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.
CWE
- CWE-79
Referencias
- https://plugins.trac.wordpress.org/browser/er-swiffy-insert/tags/1.0.0/er-swiffy-insert.php#L49
- https://plugins.trac.wordpress.org/browser/er-swiffy-insert/tags/1.0.0/er-swiffy-insert.php#L56
- https://plugins.trac.wordpress.org/browser/er-swiffy-insert/trunk/er-swiffy-insert.php#L49
- https://plugins.trac.wordpress.org/browser/er-swiffy-insert/trunk/er-swiffy-insert.php#L56
- https://www.wordfence.com/threat-intel/vulnerabilities/id/074d9712-9b26-47da-9e24-49854fd7257c?source=cve
JSON original (NVD)
Mostrar
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"role": "CISA Coordinator",
"options": [
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"version": "2.0.3",
"timestamp": "2026-04-22T13:06:12.917214Z"
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"integrityImpact": "LOW",
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"attackComplexity": "LOW",
"availabilityImpact": "NONE",
"privilegesRequired": "LOW",
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"impactScore": 2.7,
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"affected": [
{
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"affectedData": [
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"versions": [
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"version": "0",
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"published": "2026-04-22T09:16:22.273",
"references": [
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"description": [
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"descriptions": [
{
"lang": "en",
"value": "The ER Swiffy Insert plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the [swiffy] shortcode in all versions up to and including 1.0.0. This is due to insufficient input sanitization and output escaping on user-supplied shortcode attributes ('n', 'w', 'h'). These attributes are extracted using extract() and directly interpolated into the HTML output without any escaping such as esc_attr(). This makes it possible for authenticated attackers, with Contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page."
}
],
"lastModified": "2026-06-17T10:55:57.773",
"sourceIdentifier": "security@wordfence.com"
}