RCE in Nystudio107 Seomatic
CVE-2018-14716
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.
Vulnerability class: RCE (Remote Code Execution)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.330 (98.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.330 · newest: 0.330 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.exploit-db.com/exploits/45108/ (Exploit, VDB Entry, Third Party Advisory, exploit)
- github.com/nystudio107/craft-seomatic/releases/tag/3.1.4 (Patch, Vendor Advisory)
- twitter.com/nystudio107/status/1021855169515057152 (Vendor Advisory)
- ha.cker.info/exploitation-of-server-side-template-injection-with-craft-cms-plgu… (Third Party Advisory)
- twitter.com/nystudio107/status/1021847835418009605 (Vendor Advisory)
- github.com/nystudio107/craft-seomatic/commit/1e7d1d084ac3a89e7ec70620f274911050… (Vendor Advisory)
Frequently asked questions
- What is CVE-2018-14716?
- CVE-2018-14716 is a high-severity vulnerability in Nystudio107 Seomatic, classified under Code Injection. CVSS score: 7.5/10. Published 2018-08-06.
- How severe is CVE-2018-14716?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2018-14716 known to be exploited?
- 6 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.