CWE-646
Reliance on File Name or Extension of Externally-Supplied File
The product allows a file to be uploaded, but it relies on the file name or extension of the file to determine the appropriate behaviors. This could be used by attackers to cause the file to be misclassified and processed in a dangerous fashion.
CVE-2021-34639 (GCVE-0-2021-34639)
Vulnerability from cvelistv5 – Published: 2021-08-05 20:18 – Updated: 2024-08-04 00:19
VLAI?
Title
WordPress Download Manager <= 3.1.24 Authenticated Arbitrary File Upload
Summary
Authenticated File Upload in WordPress Download Manager <= 3.1.24 allows authenticated (Author+) users to upload files with a double extension, e.g. "payload.php.png" which is executable in some configurations. This issue affects: WordPress Download Manager version 3.1.24 and prior versions.
Severity ?
7.5 (High)
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| W3 Eden, Inc. | WordPress Download Manager |
Affected:
3.1.24 , ≤ 3.1.24
(custom)
|
Credits
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CVE-2023-45599 (GCVE-0-2023-45599)
Vulnerability from cvelistv5 – Published: 2024-03-05 11:34 – Updated: 2024-08-02 20:21
VLAI?
Summary
A CWE-646 “Reliance on File Name or Extension of Externally-Supplied File” vulnerability in the “iec61850” functionality of the web application allows a remote authenticated attacker to upload any arbitrary type of file into the device. This issue affects: AiLux imx6 bundle below version imx6_1.0.7-2.
Severity ?
5.5 (Medium)
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| AiLux | imx6 bundle |
Affected:
0 , < 1.0.7-2
(semver)
|
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CVE-2024-38432 (GCVE-0-2024-38432)
Vulnerability from cvelistv5 – Published: 2024-07-30 08:50 – Updated: 2024-08-02 04:12
VLAI?
Title
Matrix – Tafnit v8 CWE-646: Reliance on File Name or Extension of Externally-Supplied File
Summary
Matrix Tafnit v8
-
CWE-646: Reliance on File Name or Extension of Externally-Supplied File
Severity ?
5.5 (Medium)
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
Impacted products
Date Public ?
2024-07-30 08:28
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CVE-2024-52052 (GCVE-0-2024-52052)
Vulnerability from cvelistv5 – Published: 2024-11-21 22:20 – Updated: 2024-11-22 16:11
VLAI?
Title
Stream Target Remote Code Execution in Wowza Streaming Engine
Summary
Wowza Streaming Engine below 4.9.1 permits an authenticated Streaming Engine Manager administrator to define a custom application property and poison a stream target for high-privilege remote code execution.
Severity ?
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Wowza | Streaming Engine |
Affected:
4.3.0 , < 4.9.1
(cpe)
|
Date Public ?
2024-11-21 22:15
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CVE-2025-1889 (GCVE-0-2025-1889)
Vulnerability from cvelistv5 – Published: 2025-03-03 18:38 – Updated: 2025-12-29 14:19
VLAI?
Title
picklescan - Security scanning bypass via non-standard file extensions
Summary
picklescan before 0.0.22 only considers standard pickle file extensions in the scope for its vulnerability scan. An attacker could craft a malicious model that uses Pickle and include a malicious pickle file with a non-standard file extension. Because the malicious pickle file inclusion is not considered as part of the scope of picklescan, the file would pass security checks and appear to be safe, when it could instead prove to be problematic.
Severity ?
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| mmaitre314 | picklescan |
Affected:
0.0.1 , ≤ 0.0.21
(semver)
|
Credits
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CVE-2025-30662 (GCVE-0-2025-30662)
Vulnerability from cvelistv5 – Published: 2025-11-13 14:53 – Updated: 2026-02-26 16:57
VLAI?
Title
Zoom Workplace VDI Plugin macOS Universal Installer - Symlink Following
Summary
Symlink following in the installer for the Zoom Workplace VDI Plugin macOS Universal installer before version 6.3.14, 6.4.14, and 6.5.10 in their respective tracks may allow an authenticated user to conduct a disclosure of information via network access.
Severity ?
6.6 (Medium)
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Zoom Communications Inc. | Zoom Workplace VDI Plugin macOS Universal installer |
Affected:
see references
|
Date Public ?
2025-11-11 13:00
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CVE-2025-41720 (GCVE-0-2025-41720)
Vulnerability from cvelistv5 – Published: 2025-10-22 06:52 – Updated: 2025-10-22 15:48
VLAI?
Title
Sauter: Arbitrary File Upload
Summary
A low privileged remote attacker can upload arbitrary data masked as a png file to the affected device using the webserver API because only the file extension is verified.
Severity ?
4.3 (Medium)
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sauter | modulo 6 devices modu680-AS |
Affected:
0.0.0 , < Firmware v3.2.0
(semver)
|
|||||||||||||||||||||||||||
|
|||||||||||||||||||||||||||||
Credits
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CVE-2025-58449 (GCVE-0-2025-58449)
Vulnerability from cvelistv5 – Published: 2025-09-08 21:27 – Updated: 2025-09-09 13:30
VLAI?
Title
Maho Vulnerable to Authenticated Remote Code Execution via File Upload
Summary
Maho is a free and open source ecommerce platform. In Maho prior to 25.9.0, an authenticated staff user with access to the `Dashboard` and `Catalog\Manage Products` permissions can create a custom option on a listing with a file input field. By allowing file uploads with a `.php` extension, the user can use the filed to upload malicious PHP files, gaining remote code execution. Version 25.9.0 fixes the issue.
Severity ?
CWE
- CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
References
| URL | Tags | |||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| MahoCommerce | maho |
Affected:
< 25.9.0
|
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CVE-2026-20172 (GCVE-0-2026-20172)
Vulnerability from cvelistv5 – Published: 2026-05-06 16:15 – Updated: 2026-05-06 17:46
VLAI?
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"
},
{
"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"
},
{
"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"
}
Mitigation
Phase: Architecture and Design
Description:
- Make decisions on the server side based on file content and not on file name or extension.
CAPEC-209: XSS Using MIME Type Mismatch
An adversary creates a file with scripting content but where the specified MIME type of the file is such that scripting is not expected. The adversary tricks the victim into accessing a URL that responds with the script file. Some browsers will detect that the specified MIME type of the file does not match the actual type of its content and will automatically switch to using an interpreter for the real content type. If the browser does not invoke script filters before doing this, the adversary's script may run on the target unsanitized, possibly revealing the victim's cookies or executing arbitrary script in their browser.