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Description

Webmin before 2.641 contains a stored cross-site scripting vulnerability in the email template description field of the System and Server Status module that allows low-privileged authenticated attackers to execute arbitrary JavaScript in the browser context of administrators by injecting unsanitized input stored in save_tmpl.cgi and rendered unescaped in list_tmpls.cgi.

PUBLISHED Reserved 2026-01-08 | Published 2026-05-21 | Updated 2026-05-25 | Assigner VulnCheck




MEDIUM: 5.1CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N

MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem types

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Product status

Default status
affected

Any version before 2.641
affected

Credits

Hamed Kohi (@0xHamy) finder

VulnCheck finder

References

webmin.com/changelog/webmin-2.641-released/ release-notes patch

www.vulncheck.com/...stored-xss-via-system-and-server-status third-party-advisory

cve.org (CVE-2026-22678)

nvd.nist.gov (CVE-2026-22678)

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