XSS in Wpmailster Wp_mailster

CVE-2017-17451

The WP Mailster plugin before 1.5.5 for WordPress has XSS in the unsubscribe handler via the mes parameter to view/subscription/unsubscribe2.php.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.051 (91.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2017-17451?
CVE-2017-17451 is a medium-severity vulnerability in Wpmailster Wp_mailster, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-12-07.
How severe is CVE-2017-17451?
Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2017-17451 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.