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GHSA-RX97-PWC5-6V32
Vulnerability from github – Published: 2026-05-06 18:30 – Updated: 2026-05-06 18:30
VLAI?
Details
A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.
This vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.
Severity ?
4.3 (Medium)
{
"affected": [],
"aliases": [
"CVE-2026-20172"
],
"database_specific": {
"cwe_ids": [
"CWE-646"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-06T17:16:20Z",
"severity": "MODERATE"
},
"details": "A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\n\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.\u0026nbsp;",
"id": "GHSA-rx97-pwc5-6v32",
"modified": "2026-05-06T18:30:31Z",
"published": "2026-05-06T18:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20172"
},
{
"type": "WEB",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
CVE-2026-20172 (GCVE-0-2026-20172)
Vulnerability from cvelistv5 – Published: 2026-05-06 16:15 – Updated: 2026-05-06 17:46
VLAI?
EPSS
Title
Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability
Summary
A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.
This vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.
Severity ?
4.3 (Medium)
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Enterprise Chat and Email |
Affected:
11.6(1)_ES3
Affected: 11.6(1)_ES4 Affected: 12.0(1)_ES6 Affected: 11.6(1)_ES8 Affected: 12.0(1)_ES5a Affected: 11.6(1)_ES9 Affected: 12.0(1)_ES6_ET1 Affected: 11.6(1)_ES6 Affected: 11.6(1)_ES5 Affected: 12.5(1)_ET1 Affected: 12.5(1) Affected: 12.5(1)_ES3_ET1 Affected: 12.0(1)_ES3 Affected: 11.6(1)_ES11 Affected: 12.0(1)_ES4 Affected: 12.0(1)_ES5 Affected: 11.6(1)_ES2 Affected: 11.6(1)_ES9a Affected: 11.6(1)_ES10 Affected: 12.0(1)_ES1 Affected: 12.0(1) Affected: 12.5(1)_ES3 Affected: 12.6(1) Affected: 11.5(1) Affected: 12.0(1)_ES2 Affected: 11.6(1)_ES7 Affected: 12.5(1)_ES2 Affected: 12.6(1)_ET1 Affected: 11.6(1) Affected: 12.5(1)_ES1 Affected: 12.6(1)_ET2 Affected: 12.5(1)_ES3_ET2 Affected: 12.0(1)_ES6_ET2 Affected: 12.6(1)_ES1 Affected: 12.5(1)_ES4 Affected: 11.6(1)_ES12 Affected: 12.6(1)_ET3 Affected: 12.5(1)_ES4_ET1 Affected: 12.0(1)_ES6_ET3 Affected: 12.6(1)_ES1_ET1 Affected: 12.6(1)_ES2 Affected: 12.6_ES2_ET1 Affected: 12.5(1)_ES5 Affected: 12.6_ES2_ET2 Affected: 12.0(1)_ES7 Affected: 12.6_ES2_ET3 Affected: 12.0(1)_ES7_ET1 Affected: 12.5(1)_ES5_ET1 Affected: 12.6_ES2_ET4 Affected: 12.6(1)_ES3 Affected: 11.6(1)_ES12_ET1 Affected: 12.6_ES3_ET1 Affected: 12.5(1)_ES6 Affected: 12.6_ES3_ET2 Affected: 12.6(1)_ES4 Affected: 12.5(1)_ES7 Affected: 12.6(1)_ES4_ET1 Affected: 12.6(1)_ES5 Affected: 12.6(1)_ES5_ET1 Affected: 12.6(1)_ES5_ET2 Affected: 12.6(1)_ES6 Affected: 12.6(1)_ES6_ET1 Affected: 12.5(1)_ES8 Affected: 12.6(1)_ES6_ET2 Affected: 12.6(1)_ES7 Affected: 12.6(1)_ES8 Affected: 12.6(1)_ES4_ET2 Affected: 12.6(1)_ES3_ET3 Affected: 12.6(1)_ES2_ET5 Affected: 12.6(1)_ES1_ET2 Affected: 12.6(1)_ES8_ET1 Affected: 12.6(1)_ES7_ET1 Affected: 12.6(1)_ES6_ET3 Affected: 12.6(1)_ES5_ET3 Affected: 12.5(1)_ES8_ET1 Affected: 12.5(1)_ES3_ET3 Affected: 12.5(1)_ES5_ET2 Affected: 12.5(1)_ES6_ET1 Affected: 12.5(1)_ES4_ET2 Affected: 12.5(1)_ES7_ET1 Affected: 12.6(1)_ES8_ET2 Affected: 12.6(1)_ES9 Affected: 12.6(1)_ES9_ET1 Affected: 12.5(1)_ES9 Affected: 12.6(1)_ES9_ET2 Affected: 12.6(1)_ES9_ET3 Affected: 12.6(1)_ES10 Affected: 12.6(1)_ES10_ET1 Affected: 15.0(1) Affected: 12.6(1)_ES11 Affected: 15.0(1)_ET1 Affected: 15.0(1)ES202508 Affected: 12.6(1)_ES11_ET1 Affected: 12.6(1)_ES11_ET2 Affected: 12.6(1)_ES12 Affected: 15.0(1)ES202511 Affected: 12.6(1)_ES12_ET1 Affected: 15.0(1)ES202511_ET1 Affected: 12.5(1)_ES10 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-20172",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-05-06T17:45:56.726902Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-05-06T17:46:04.178Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unknown",
"product": "Cisco Enterprise Chat and Email",
"vendor": "Cisco",
"versions": [
{
"status": "affected",
"version": "11.6(1)_ES3"
},
{
"status": "affected",
"version": "11.6(1)_ES4"
},
{
"status": "affected",
"version": "12.0(1)_ES6"
},
{
"status": "affected",
"version": "11.6(1)_ES8"
},
{
"status": "affected",
"version": "12.0(1)_ES5a"
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{
"status": "affected",
"version": "11.6(1)_ES9"
},
{
"status": "affected",
"version": "12.0(1)_ES6_ET1"
},
{
"status": "affected",
"version": "11.6(1)_ES6"
},
{
"status": "affected",
"version": "11.6(1)_ES5"
},
{
"status": "affected",
"version": "12.5(1)_ET1"
},
{
"status": "affected",
"version": "12.5(1)"
},
{
"status": "affected",
"version": "12.5(1)_ES3_ET1"
},
{
"status": "affected",
"version": "12.0(1)_ES3"
},
{
"status": "affected",
"version": "11.6(1)_ES11"
},
{
"status": "affected",
"version": "12.0(1)_ES4"
},
{
"status": "affected",
"version": "12.0(1)_ES5"
},
{
"status": "affected",
"version": "11.6(1)_ES2"
},
{
"status": "affected",
"version": "11.6(1)_ES9a"
},
{
"status": "affected",
"version": "11.6(1)_ES10"
},
{
"status": "affected",
"version": "12.0(1)_ES1"
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{
"status": "affected",
"version": "12.0(1)"
},
{
"status": "affected",
"version": "12.5(1)_ES3"
},
{
"status": "affected",
"version": "12.6(1)"
},
{
"status": "affected",
"version": "11.5(1)"
},
{
"status": "affected",
"version": "12.0(1)_ES2"
},
{
"status": "affected",
"version": "11.6(1)_ES7"
},
{
"status": "affected",
"version": "12.5(1)_ES2"
},
{
"status": "affected",
"version": "12.6(1)_ET1"
},
{
"status": "affected",
"version": "11.6(1)"
},
{
"status": "affected",
"version": "12.5(1)_ES1"
},
{
"status": "affected",
"version": "12.6(1)_ET2"
},
{
"status": "affected",
"version": "12.5(1)_ES3_ET2"
},
{
"status": "affected",
"version": "12.0(1)_ES6_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES1"
},
{
"status": "affected",
"version": "12.5(1)_ES4"
},
{
"status": "affected",
"version": "11.6(1)_ES12"
},
{
"status": "affected",
"version": "12.6(1)_ET3"
},
{
"status": "affected",
"version": "12.5(1)_ES4_ET1"
},
{
"status": "affected",
"version": "12.0(1)_ES6_ET3"
},
{
"status": "affected",
"version": "12.6(1)_ES1_ET1"
},
{
"status": "affected",
"version": "12.6(1)_ES2"
},
{
"status": "affected",
"version": "12.6_ES2_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES5"
},
{
"status": "affected",
"version": "12.6_ES2_ET2"
},
{
"status": "affected",
"version": "12.0(1)_ES7"
},
{
"status": "affected",
"version": "12.6_ES2_ET3"
},
{
"status": "affected",
"version": "12.0(1)_ES7_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES5_ET1"
},
{
"status": "affected",
"version": "12.6_ES2_ET4"
},
{
"status": "affected",
"version": "12.6(1)_ES3"
},
{
"status": "affected",
"version": "11.6(1)_ES12_ET1"
},
{
"status": "affected",
"version": "12.6_ES3_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES6"
},
{
"status": "affected",
"version": "12.6_ES3_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES4"
},
{
"status": "affected",
"version": "12.5(1)_ES7"
},
{
"status": "affected",
"version": "12.6(1)_ES4_ET1"
},
{
"status": "affected",
"version": "12.6(1)_ES5"
},
{
"status": "affected",
"version": "12.6(1)_ES5_ET1"
},
{
"status": "affected",
"version": "12.6(1)_ES5_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES6"
},
{
"status": "affected",
"version": "12.6(1)_ES6_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES8"
},
{
"status": "affected",
"version": "12.6(1)_ES6_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES7"
},
{
"status": "affected",
"version": "12.6(1)_ES8"
},
{
"status": "affected",
"version": "12.6(1)_ES4_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES3_ET3"
},
{
"status": "affected",
"version": "12.6(1)_ES2_ET5"
},
{
"status": "affected",
"version": "12.6(1)_ES1_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES8_ET1"
},
{
"status": "affected",
"version": "12.6(1)_ES7_ET1"
},
{
"status": "affected",
"version": "12.6(1)_ES6_ET3"
},
{
"status": "affected",
"version": "12.6(1)_ES5_ET3"
},
{
"status": "affected",
"version": "12.5(1)_ES8_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES3_ET3"
},
{
"status": "affected",
"version": "12.5(1)_ES5_ET2"
},
{
"status": "affected",
"version": "12.5(1)_ES6_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES4_ET2"
},
{
"status": "affected",
"version": "12.5(1)_ES7_ET1"
},
{
"status": "affected",
"version": "12.6(1)_ES8_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES9"
},
{
"status": "affected",
"version": "12.6(1)_ES9_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES9"
},
{
"status": "affected",
"version": "12.6(1)_ES9_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES9_ET3"
},
{
"status": "affected",
"version": "12.6(1)_ES10"
},
{
"status": "affected",
"version": "12.6(1)_ES10_ET1"
},
{
"status": "affected",
"version": "15.0(1)"
},
{
"status": "affected",
"version": "12.6(1)_ES11"
},
{
"status": "affected",
"version": "15.0(1)_ET1"
},
{
"status": "affected",
"version": "15.0(1)ES202508"
},
{
"status": "affected",
"version": "12.6(1)_ES11_ET1"
},
{
"status": "affected",
"version": "12.6(1)_ES11_ET2"
},
{
"status": "affected",
"version": "12.6(1)_ES12"
},
{
"status": "affected",
"version": "15.0(1)ES202511"
},
{
"status": "affected",
"version": "12.6(1)_ES12_ET1"
},
{
"status": "affected",
"version": "15.0(1)ES202511_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES10"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in the Lite Agent feature of Cisco Enterprise Chat and Email (ECE) could allow an authenticated, remote attacker to conduct browser-based attacks. To exploit this vulnerability, the attacker must have valid credentials for a user account with at least the role of Agent.\r\n\r\nThis vulnerability is due to inadequate validation of file contents during file upload operations. An attacker could exploit this vulnerability by uploading a file that contains malicious scripts or HTML code, which the application could make available to other users to access. A successful exploit could allow the attacker to execute the contents of that file in the browser of a user and conduct browser-based attacks.\u0026nbsp;"
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-646",
"description": "Reliance on File Name or Extension of Externally-Supplied File",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-05-06T16:15:37.789Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-ece-lite-agent-BCgSN8eb",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-lite-agent-BCgSN8eb"
}
],
"source": {
"advisory": "cisco-sa-ece-lite-agent-BCgSN8eb",
"defects": [
"CSCws79262"
],
"discovery": "EXTERNAL"
},
"title": "Cisco Enterprise Chat and Email Lite Agent File Upload Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"assignerShortName": "cisco",
"cveId": "CVE-2026-20172",
"datePublished": "2026-05-06T16:15:37.789Z",
"dateReserved": "2025-10-08T11:59:15.391Z",
"dateUpdated": "2026-05-06T17:46:04.178Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Trend slope:
-
(linear fit over daily sighting counts)
Show additional events:
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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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