Web::Passwd versions through 0.03 for Perl is vulnerable to RCE

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Summary

CVECVE-2026-8500
StatePUBLISHED
AssignerCPANSec
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-13 23:16:43 UTC
Updated2026-05-14 18:16:51 UTC
DescriptionWeb::Passwd versions through 0.03 for Perl is vulnerable to RCE. Web::Passwd is a small CGI application for managing htpasswd files using the htpasswd command. The user parameter is not validated or escaped, and is used as the last argument on the command line, allowing for command injection.

Risk And Classification

Primary CVSS: v3.1 9.8 CRITICAL from ADP

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.000970000 probability, percentile 0.264120000 (date 2026-05-25)

Problem Types: CWE-78 | CWE-78 CWE-78 Improper Neutralization of Special Elements used in an OS Command

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary9.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA EVANK WebPasswd affected 0.03 custom Not specified

References

ReferenceSourceLinkTags
httpd.apache.org/docs/current/programs/htpasswd.html 9b29abf9-4ab0-4765-b253-1875cd9b441e httpd.apache.org
www.openwall.com/lists/oss-security/2026/05/13/8 af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
metacpan.org/release/EVANK/Web-Passwd-0.03 9b29abf9-4ab0-4765-b253-1875cd9b441e metacpan.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

SourceTimeEvent
CNA2007-02-08T00:00:00.000ZWeb::Passwd 0.03 was released

Solutions

CNA: This application has not been updated since 2007 and appears to have been abandoned. Use other solutions.

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