CVE-2026-56022 Webmin MFA bypass

Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.640...

CVE-2026-56022

Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.641...

EUVD-2026-37907

Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header, allowing bypass of additional MFA requirements. Fixed in 2.641...

Webmin multiple vulnerabilities

RISK EVALUATION Webmin contains multiple vulnerabilities. In the worst case, a remote, unauthenticated attacker could impersonate and authenticate as any user. 2. RECOMMENDED PRACTICES Update to most recent available version of Webmin. 3. DESCRIPTION The Webmin HTTP server miniserv.pl allows...

PT-2026-50712

Name of the Vulnerable Software and Affected Versions Webmin affected versions not specified Description Unauthenticated attackers can read the contents of any file ending in .conf within module directories. This is caused by a bypassable regex pattern, which is a sequence of characters used to...

PT-2026-50711

Name of the Vulnerable Software and Affected Versions Webmin versions prior to 2.641 Description The Webmin HTTP server miniserv.pl improperly trusts a client-supplied HTTP header for SSL client certificate identity. This allows unauthenticated remote attackers to spoof certificate distinguished...

PT-2026-50713

Name of the Vulnerable Software and Affected Versions Webmin versions prior to 2.641 Description Webmin accepts basic authentication without session cookies when an attacker provides the 'User-Agent: webmin' header. This behavior allows the bypass of additional multi-factor authentication MFA...

The vulnerability in the email template description of the state module and the Webmin control panel of the hosting system allows attackers to perform cross-site scripting (XSS) attacks.

The vulnerability of the email template description field in the state module of the Webmin hosting control panel is related to insufficient protection of the website structure. Exploiting this vulnerability allows a malicious actor to perform cross-site scripting attacks XSS remotely...

CVE-2026-49102

Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type e.g., text/plain...

CVE-2026-49103

Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi...

CVE-2026-49102

Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type e.g., text/plain...

CVE-2026-49103

Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi...

CVE-2026-49103

Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi...

CVE-2026-49103

Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi...

CVE-2026-49103

Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi...

CVE-2026-49103

Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi...

EUVD-2026-32532

Webmin before 2.640 does not safely construct a filename for saving of an attachment within the mailboxes component. This occurs in mailboxes/detachall.cgi...

CVE-2026-49103

CVE-2026-49103 affects Webmin prior to 2.640. The issue occurs in the mailboxes/detachall.cgi path where a filename is not safely constructed when saving an attachment, enabling a high-severity impact as indicated by the CVSS: 9.4 (CRITICAL) with CONFIDENTIALITY/INTEGRITY/AVAILABILITY impact. Det...

EUVD-2026-32528

Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type e.g., text/plain...

CVE-2026-49102

Webmin before 2.640 allows mailboxes/detach.cgi XSS via an SVG document attachment that is viewed in the mailboxes component, because image/svg+xml is used instead of a safe type e.g., text/plain...