XSS in Smarty

CVE-2018-25047

In Smarty before 3.1.47 and 4.x before 4.2.1, libs/plugins/function.mailto.php allows XSS. A web page that uses smarty_function_mailto, and that could be parameterized using GET or POST input parameters, could allow injection of JavaScript code by a user.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (54.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/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-2018-25047?
CVE-2018-25047 is a medium-severity vulnerability in Smarty, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2022-09-15.
How severe is CVE-2018-25047?
Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2018-25047 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.