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CVE-2018-14716

HighPublished

A Server Side Template Injection (SSTI) was discovered in the SEOmatic plugin before 3.1.4 for Craft CMS, because requests that don't match any elements...

Published: Aug 6, 2018
Updated: Aug 5, 2024
Assigning CNA: mitre
Evidence observed: Jul 31, 2018

Primary CVSS

7.5/ 10High

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS probability estimate

33.0%

Moderate · next 30 days

Percentile: 98.3%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

A Server Side Template Injection (SSTI) was discovered in the SEOmatic plugin before 3.1.4 for Craft CMS, because requests that don't match any elements incorrectly generate the canonicalUrl, and can lead to execution of Twig code.

Sources

CVE-2018-14716PoC
PoC for CVE-2018-14716
Craft CMS SEOmatic plugin 3.1.4 - Server-Side Template InjectionExploit
0xB455 · linux · Jul 31, 2018

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