Description
Webmin is a web-based system administration tool for Unix-like servers. Prior to version 2.640, for Webmin accounts that require a second authentication factor (typically TOTP), an attacker with knowledge of the username and password can bypass the 2FA requirement by using Basic authentication. Webmin is a web-based system administration tool for Unix-like servers. As a workaround, apply the patch from commit da18a16c84ae5c0b78cad79609cb0efb174000ec manually.
References (2)
Core 2
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/webmin/webmin/security/advisories/GHSA-qpww-fff2-6fgv
X_Refsource_Misc x_refsource_misc
https://github.com/webmin/webmin/commit/da18a16c84ae5c0b78cad79609cb0efb174000ec
Scores
CVSS v4
5.3
EPSS
0.0042
EPSS Percentile
34.4%
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-287
Status
published
Products (1)
webmin/webmin
< 2.640
Published
Jul 20, 2026
Tracked Since
Jul 20, 2026