CVE-2026-0735
The User Language Switch plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tab_color_picker_language_switch' parameter in all versions up to, and including, 1.6.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N
- Puntuación base: 4.4
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.25%
- Percentil entre todas las CVEs puntuadas: 15
- Fecha de la puntuación: 4/10/2026
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
JSON original (NVD)
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{
"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"ssvcData": {
"id": "CVE-2026-0735",
"role": "CISA Coordinator",
"options": [
{
"exploitation": "none"
},
{
"automatable": "no"
},
{
"technicalImpact": "partial"
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"version": "2.0.3",
"timestamp": "2026-02-17T15:36:31.736147Z"
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"cvssMetricV31": [
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"type": "Secondary",
"source": "security@wordfence.com",
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"version": "3.1",
"baseScore": 4.4,
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"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "HIGH",
"availabilityImpact": "NONE",
"privilegesRequired": "HIGH",
"confidentialityImpact": "LOW"
},
"impactScore": 2.7,
"exploitabilityScore": 1.3
}
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"affected": [
{
"source": "security@wordfence.com",
"affectedData": [
{
"vendor": "webilop",
"product": "User Language Switch",
"versions": [
{
"status": "affected",
"version": "0",
"versionType": "semver",
"lessThanOrEqual": "1.6.10"
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"defaultStatus": "unaffected"
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"published": "2026-02-14T07:16:08.770",
"references": [
{
"url": "https://plugins.trac.wordpress.org/browser/user-language-switch/tags/1.6.10/uls-options.php#L365",
"source": "security@wordfence.com"
},
{
"url": "https://plugins.trac.wordpress.org/browser/user-language-switch/trunk/uls-options.php#L365",
"source": "security@wordfence.com"
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{
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c6f61e13-20fb-4cef-bae7-2cd5fa038175?source=cve",
"source": "security@wordfence.com"
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"descriptions": [
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"lang": "en",
"value": "The User Language Switch plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'tab_color_picker_language_switch' parameter in all versions up to, and including, 1.6.10 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled."
},
{
"lang": "es",
"value": "El plugin User Language Switch para WordPress es vulnerable a Cross-Site Scripting Almacenado a través del parámetro 'tab_color_picker_language_switch' en todas las versiones hasta la 1.6.10, inclusive, debido a una sanitización de entrada y un escape de salida insuficientes. Esto permite a atacantes autenticados, con acceso de nivel de administrador y superior, inyectar scripts web arbitrarios en páginas que se ejecutarán cada vez que un usuario acceda a una página inyectada. Esto solo afecta a instalaciones multisitio y a las instalaciones donde se ha deshabilitado unfiltered_html."
}
],
"lastModified": "2026-06-17T10:11:17.430",
"sourceIdentifier": "security@wordfence.com"
}