CVE-2026-105061 WP Mailster - Reflected XSS

WP Mailster <= 1.9.0.0 contains a reflected XSS caused by improper input sanitization, letting unauthenticated attackers execute arbitrary scripts, exploit requires no authentication.

CVSS base score 7.1 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.24% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Reflected XSS
Impact
Client Script Exec
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Published
6 October 2026
Updated
15 October 2026
Weakness
CWE-79

Vendor fix

Update to the latest version beyond 1.9.0.0.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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