CVE-2026-8500: CWE-78 Improper Neutralization of Special Elements used in an OS Command in EVANK Web::Passwd
CVE-2026-8500 is a command injection vulnerability in EVANK's Web::Passwd Perl CGI application versions through 0. 03. The application manages htpasswd files by invoking the htpasswd command, but fails to validate or escape the user parameter, which is passed directly as a command line argument. This improper neutralization of special elements (CWE-78) allows an attacker to execute arbitrary OS commands remotely. No official patch or remediation guidance is currently available, and no known exploits have been reported in the wild. The vulnerability affects local installations of the Web::Passwd application and is not related to a cloud service. Given the potential for remote code execution, the severity is assessed as high. No geographic targeting is indicated.
AI Analysis
Technical Summary
Web::Passwd versions through 0.03 for Perl contain a command injection vulnerability due to improper validation and escaping of the user parameter. This parameter is used as the last argument in a system command invoking htpasswd, enabling an attacker to inject arbitrary OS commands. The vulnerability is classified under CWE-78 (Improper Neutralization of Special Elements used in an OS Command). There is no CVSS score or vendor advisory indicating a patch or mitigation. The vulnerability is published and assigned by CPANSec but lacks remediation details.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the server running the vulnerable Web::Passwd application. This can lead to full system compromise, data theft, or disruption of service. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid exposing the vulnerable Web::Passwd CGI application to untrusted networks or users. Implementing input validation or escaping on the user parameter before it is passed to system commands is recommended if modifying the source code is possible.
CVE-2026-8500: CWE-78 Improper Neutralization of Special Elements used in an OS Command in EVANK Web::Passwd
Description
CVE-2026-8500 is a command injection vulnerability in EVANK's Web::Passwd Perl CGI application versions through 0. 03. The application manages htpasswd files by invoking the htpasswd command, but fails to validate or escape the user parameter, which is passed directly as a command line argument. This improper neutralization of special elements (CWE-78) allows an attacker to execute arbitrary OS commands remotely. No official patch or remediation guidance is currently available, and no known exploits have been reported in the wild. The vulnerability affects local installations of the Web::Passwd application and is not related to a cloud service. Given the potential for remote code execution, the severity is assessed as high. No geographic targeting is indicated.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Web::Passwd versions through 0.03 for Perl contain a command injection vulnerability due to improper validation and escaping of the user parameter. This parameter is used as the last argument in a system command invoking htpasswd, enabling an attacker to inject arbitrary OS commands. The vulnerability is classified under CWE-78 (Improper Neutralization of Special Elements used in an OS Command). There is no CVSS score or vendor advisory indicating a patch or mitigation. The vulnerability is published and assigned by CPANSec but lacks remediation details.
Potential Impact
Successful exploitation allows remote attackers to execute arbitrary operating system commands on the server running the vulnerable Web::Passwd application. This can lead to full system compromise, data theft, or disruption of service. No known exploits are currently reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should avoid exposing the vulnerable Web::Passwd CGI application to untrusted networks or users. Implementing input validation or escaping on the user parameter before it is passed to system commands is recommended if modifying the source code is possible.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- CPANSec
- Date Reserved
- 2026-05-13T20:31:51.641Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a05006ccbff5d86101a58e8
Added to database: 5/13/2026, 10:51:24 PM
Last enriched: 5/13/2026, 11:06:32 PM
Last updated: 5/13/2026, 11:54:39 PM
Views: 5
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