CVE-2018-14716

mediumpriority · attend · 51EPSS 0.327 · 98 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · PoC

Likely / severe?

32.7% (98th) EPSS

CVSS 5 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-28

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.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:P/I:N/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:Nsecondary · OSV

v3.17.1highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N/E:Psecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94USprimaryCWE-94US

exploits (2)

Public proof-of-concept and weaponised exploit code.

EDB-45108Craft CMS SEOmatic plugin 3.1.4 - Server-Side Template InjectionPoC · exploit_db
0xB455/CVE-2018-14716PoC for CVE-2018-14716PoC · poc_in_github

affected products (3)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
nystudio107 seomatic< 3.1.4nvdUScpe:2.3:a:nystudio107:seomatic:*:*:*:*:*:*:*:*
Packagist nystudio107/craft-seomatic< 3.1.4osvUSpkg:composer/nystudio107/craft-seomatic

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-6j9m-rp7m-3gfgSEOmatic plugin for Craft CMS SSTI Vulnerability2022-05-13ghsa · osvUS
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.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2018-08-06modified 2026-06-17

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+10451 more

references (18)

External citations — patches, advisories, analysis.

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