CVE-2018-14716

Name: CVE-2018-14716
Creator: NVD / NIST
Published: 2018-08-06T20:29:01.49+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 33.03%

Last modified Jun 17, 2026

CVE-2018-14716 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 33.03% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

33.03%

98.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-94

Affected Software

Vendor	Product	Versions
Nystudio107	Seomatic	< 3.1.4

References

http://ha.cker.info/exploitation-of-server-side-template-injection-with-craft-cms-plguin-seomatic/Third Party Advisory
https://github.com/nystudio107/craft-seomatic/commit/1e7d1d084ac3a89e7ec70620f2749110508d1ce1Vendor Advisory
https://github.com/nystudio107/craft-seomatic/releases/tag/3.1.4Patch, Vendor Advisory
https://twitter.com/nystudio107/status/1021847835418009605Vendor Advisory
https://twitter.com/nystudio107/status/1021855169515057152Vendor Advisory
https://www.exploit-db.com/exploits/45108/Exploit, Third Party Advisory, VDB Entry
http://ha.cker.info/exploitation-of-server-side-template-injection-with-craft-cms-plguin-seomatic/Third Party Advisory
https://github.com/nystudio107/craft-seomatic/commit/1e7d1d084ac3a89e7ec70620f2749110508d1ce1Vendor Advisory
https://github.com/nystudio107/craft-seomatic/releases/tag/3.1.4Patch, Vendor Advisory
https://twitter.com/nystudio107/status/1021847835418009605Vendor Advisory
https://twitter.com/nystudio107/status/1021855169515057152Vendor Advisory
https://www.exploit-db.com/exploits/45108/Exploit, Third Party Advisory, VDB Entry

Timeline

Published: Aug 6, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-14716?

How severe is CVE-2018-14716?

CVE-2018-14716 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 33.03% probability of exploitation in the next 30 days.

How do I fix CVE-2018-14716?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-14716?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST