Vulnerability in Nystudio107 Seomatic
CVE-2020-12790
In the SEOmatic plugin before 3.2.49 for Craft CMS, helpers/DynamicMeta.php does not properly sanitize the URL. This leads to Server-Side Template Injection and credentials disclosure via a crafted Twig template after a semicolon.
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: 0.022 (81.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 82nd percentile — 81.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.022 · newest: 0.022 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/nystudio107/craft-seomatic/releases/tag/3.2.49 (Third Party Advisory, Release Notes)
- github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.md (Third Party Advisory, Release Notes)
- isec.pl/en/vulnerabilities/isec-0028-seomatic-ssti-23032020.txt (Exploit, Third Party Advisory)
- github.com/nystudio107/craft-seomatic/commit/82f4a25b28fd622393da6592dc9e5ccee7… (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2020-12790?
- CVE-2020-12790 is a high-severity vulnerability in Nystudio107 Seomatic, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 7.5/10. Published 2020-05-11.
- How severe is CVE-2020-12790?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2020-12790 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.