CVE-2026-82763 (GCVE-0-2026-82763)
Vulnerability from cvelistv5 – Published: 2026-09-14 06:44 – Updated: 2026-09-14 09:00
VLAI
EPSS
VEX
Summary
Cross-site scripting vulnerability exists in Contec FX5000 series, FX4000 series, and FX3000 series. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user's web browser.
Severity
5.4 (Medium)
CWE
- CWE-79 - Cross-site scripting (XSS)
Assigner
References
2 references
Impacted products
20 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Contec Co., Ltd. | FXA5000 |
Affected:
0 , < 1.12.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXA5020 |
Affected:
0 , < 1.12.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXA5020-[][] |
Affected:
0 , < 1.12.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXE5000 |
Affected:
0 , < 1.12.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXE5000-[][] |
Affected:
0 , < 1.12.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXS5000-[][] |
Affected:
0 , < 1.12.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXS5021 |
Affected:
0 , < 1.12.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXE4000 |
Affected:
0 , < 1.14.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXE4000-WP |
Affected:
0 , < 1.14.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXS4000 |
Affected:
0 , < 1.14.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXS4020 |
Affected:
0 , < 1.14.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXA3000 |
Affected:
0 , < 1.20.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXA3000-[][] |
Affected:
0 , < 1.20.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXA3020 |
Affected:
0 , < 1.20.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXA3020-[][] |
Affected:
0 , < 1.20.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXA3200 |
Affected:
0 , < 1.20.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXE3000 |
Affected:
0 , < 1.20.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXE3000-[][] |
Affected:
0 , < 1.20.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXE3000-WP |
Affected:
0 , < 1.20.00
(semver)
|
guessed | |
| Contec Co., Ltd. | FXS300[]-CN |
Affected:
0 , < 1.20.00
(semver)
|
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "FXA5000",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.12.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXA5020",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.12.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXA5020-[][]",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.12.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXE5000",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.12.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXE5000-[][]",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.12.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXS5000-[][]",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.12.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXS5021",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.12.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXE4000",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.14.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXE4000-WP",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.14.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXS4000",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.14.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXS4020",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.14.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXA3000",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXA3000-[][]",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXA3020",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXA3020-[][]",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXA3200",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXE3000",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXE3000-[][]",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXE3000-WP",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
},
{
"defaultStatus": "unaffected",
"product": "FXS300[]-CN",
"vendor": "Contec Co., Ltd.",
"versions": [
{
"lessThan": "1.20.00",
"status": "affected",
"version": "0",
"versionType": "semver"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "Cross-site scripting vulnerability exists in Contec FX5000 series, FX4000 series, and FX3000 series. If this vulnerability is exploited, an arbitrary script may be executed on a logged-in user\u0027s web browser."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
},
{
"cvssV4_0": {
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N",
"version": "4.0"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-79",
"description": "Cross-site scripting (XSS)",
"lang": "en-US",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-09-14T09:00:55.097Z",
"orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"shortName": "jpcert"
},
"references": [
{
"url": "https://www.contec.com/api/downloadlogger?download=/-/media/Contec/support/security-info/2026/contec_security_fl_26091000_en.pdf"
},
{
"url": "https://jvn.jp/en/vu/JVNVU99009004/"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"assignerShortName": "jpcert",
"cveId": "CVE-2026-82763",
"datePublished": "2026-09-14T06:44:29.787Z",
"dateReserved": "2026-08-31T02:30:58.276Z",
"dateUpdated": "2026-09-14T09:00:55.097Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
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}
}
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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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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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.
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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