CVE-2026-16548
The Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat WordPress plugin before 1.8.2 does not validate the type, extension, content, or size of files submitted to its public response endpoint and stores them under the uploads directory, so an unauthenticated user can upload arbitrary files. The original extension is discarded (files are stored under a bare UUID), so this does not yield code execution or stored XSS; impact is bounded to disk consumption and content hosting. The storing path requires the channel's response storage or mail-forwarding to be configured.
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
- Puntuación base: 6.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.43%
- Percentil entre todas las CVEs puntuadas: 35
- Fecha de la puntuación: 5/10/2026
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-434
Referencias
JSON original (NVD)
Mostrar
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"role": "CISA Coordinator",
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{
"automatable": "yes"
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{
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"version": "2.0.3",
"timestamp": "2026-08-11T13:31:50.791013Z"
}
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L",
"integrityImpact": "LOW",
"userInteraction": "NONE",
"attackComplexity": "LOW",
"availabilityImpact": "LOW",
"privilegesRequired": "NONE",
"confidentialityImpact": "NONE"
},
"impactScore": 2.5,
"exploitabilityScore": 3.9
}
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"affected": [
{
"source": "contact@wpscan.com",
"affectedData": [
{
"vendor": "Unknown",
"product": "Chat Widget: Floating Customer Support Button for 30+ Channels, Supporting SMS, Calls, and Chat",
"versions": [
{
"status": "affected",
"version": "0",
"lessThan": "1.8.2",
"versionType": "semver"
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"published": "2026-08-04T07:16:30.593",
"references": [
{
"url": "https://wpscan.com/vulnerability/14d5f86b-f0ab-4920-99d0-8e2a66486232/",
"source": "contact@wpscan.com"
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}
],
"lastModified": "2026-08-26T16:31:16.753",
"sourceIdentifier": "contact@wpscan.com"
}