CVE-2026-97635 (GCVE-0-2026-97635)
Vulnerability from cvelistv5 – Published: 2026-10-22 17:57 – Updated: 2026-10-22 17:57
VLAI
EPSS
VEX
Title
Agent Zero Web UI XSS
Summary
The Agent Zero Web UI before 1.15 does not correctly sanitize user-provided input in chat messages or file uploads. When Agent Zero reproduces content in the chat interface, any injected JavaScript is executed in the context of the victim’s authenticated Agent Zero Web UI session.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · cisa-cg (v2.0.3)
Decision recorded 2026-09-24 17:22 UTC
CWE
- CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/agent0ai/agent-zero/releases/t… | release-notes |
| https://github.com/agent0ai/agent-zero/issues/943 | issue-tracking |
| https://www.cve.org/CVERecord?id=CVE-2026-97635 | vdb-entry |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Agent Zero | Agent Zero |
Affected:
0 , < 1.15
(custom)
Unaffected: 1.15 |
guessed |
Date Public
2026-01-22 00:00
{
"containers": {
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"product": "Agent Zero",
"vendor": "Agent Zero",
"versions": [
{
"lessThan": "1.15",
"status": "affected",
"version": "0",
"versionType": "custom"
},
{
"status": "unaffected",
"version": "1.15"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Joshua Wells, Vexel Foundation"
},
{
"lang": "en",
"value": "Muhammad Ali, Vexel Foundation"
}
],
"datePublic": "2026-01-22T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "The Agent Zero Web UI before 1.15 does not correctly sanitize user-provided input in chat messages or file uploads. When Agent Zero reproduces content in the chat interface, any injected JavaScript is executed in the context of the victim\u2019s authenticated Agent Zero Web UI session."
}
],
"metrics": [
{
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
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"attackRequirements": "NONE",
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"baseScore": 8.6,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
},
{
"other": {
"content": {
"id": "CVE-2026-97635",
"options": [
{
"Exploitation": "none"
},
{
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},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-09-24T17:22:29.795154Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "CWE-79 Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-22T17:57:24.056Z",
"orgId": "9119a7d8-5eab-497f-8521-727c672e3725",
"shortName": "cisa-cg"
},
"references": [
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"name": "url",
"tags": [
"release-notes"
],
"url": "https://github.com/agent0ai/agent-zero/releases/tag/v1.15"
},
{
"name": "url",
"tags": [
"issue-tracking"
],
"url": "https://github.com/agent0ai/agent-zero/issues/943"
},
{
"name": "url",
"tags": [
"vdb-entry"
],
"url": "https://www.cve.org/CVERecord?id=CVE-2026-97635"
},
{
"name": "url",
"tags": [
"third-party-advisory"
],
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-296-01.json"
}
],
"title": "Agent Zero Web UI XSS"
}
},
"cveMetadata": {
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"assignerShortName": "cisa-cg",
"cveId": "CVE-2026-97635",
"datePublished": "2026-10-22T17:57:24.056Z",
"dateReserved": "2026-09-24T17:20:46.440Z",
"dateUpdated": "2026-10-22T17:57:24.056Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": {
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"vendor": "Agent Zero",
"versions": [
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"status": "affected",
"version": "0",
"versionType": "custom"
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}
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],
"source": "9119a7d8-5eab-497f-8521-727c672e3725"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "The Agent Zero Web UI before 1.15 does not correctly sanitize user-provided input in chat messages or file uploads. When Agent Zero reproduces content in the chat interface, any injected JavaScript is executed in the context of the victim\u2019s authenticated Agent Zero Web UI session."
}
],
"id": "CVE-2026-97635",
"lastModified": "2026-10-22T18:17:32.337",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.2,
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"type": "Secondary"
}
],
"cvssMetricV40": [
{
"cvssData": {
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"Recovery": "NOT_DEFINED",
"Safety": "NOT_DEFINED",
"attackComplexity": "LOW",
"attackRequirements": "NONE",
"attackVector": "NETWORK",
"availabilityRequirement": "NOT_DEFINED",
"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityRequirement": "NOT_DEFINED",
"exploitMaturity": "NOT_DEFINED",
"integrityRequirement": "NOT_DEFINED",
"modifiedAttackComplexity": "NOT_DEFINED",
"modifiedAttackRequirements": "NOT_DEFINED",
"modifiedAttackVector": "NOT_DEFINED",
"modifiedPrivilegesRequired": "NOT_DEFINED",
"modifiedSubAvailabilityImpact": "NOT_DEFINED",
"modifiedSubConfidentialityImpact": "NOT_DEFINED",
"modifiedSubIntegrityImpact": "NOT_DEFINED",
"modifiedUserInteraction": "NOT_DEFINED",
"modifiedVulnAvailabilityImpact": "NOT_DEFINED",
"modifiedVulnConfidentialityImpact": "NOT_DEFINED",
"modifiedVulnIntegrityImpact": "NOT_DEFINED",
"privilegesRequired": "NONE",
"providerUrgency": "NOT_DEFINED",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "PASSIVE",
"valueDensity": "NOT_DEFINED",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"version": "4.0",
"vulnAvailabilityImpact": "NONE",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH",
"vulnerabilityResponseEffort": "NOT_DEFINED"
},
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"type": "Secondary"
}
],
"ssvcV203": [
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{
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{
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"timestamp": "2026-09-24T17:22:29.795154Z",
"version": "2.0.3"
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"published": "2026-10-22T18:17:32.337",
"references": [
{
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"url": "https://github.com/agent0ai/agent-zero/issues/943"
},
{
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"url": "https://github.com/agent0ai/agent-zero/releases/tag/v1.15"
},
{
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
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},
{
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-97635"
}
],
"sourceIdentifier": "9119a7d8-5eab-497f-8521-727c672e3725",
"vulnStatus": "Received",
"weaknesses": [
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}
],
"source": "9119a7d8-5eab-497f-8521-727c672e3725",
"type": "Secondary"
}
]
}
}
}
}
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| Author | Source | Type | Date | Other |
|---|
Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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model, served locally by ML-Gateway.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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