CVEvulnerability
CVE-2020-12790
7.5 HIGH
Official page ↗
- Status
- Modified
- Published
- 2020-05-11
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CVSS 2.0 ([email protected])
- 5.0 MEDIUM — AV:N/AC:L/Au:N/C:P/I:N/A:N
- Weaknesses
- CWE-74
Description
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.
Affected configurations
• nystudio107 seomatic (< 3.2.49)
Related
Weakness · CWE (1)
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness
Referenced by CWE · observed example (1)
- CWE-1336 Improper Neutralization of Special Elements Used in a Template Engine weakness
References
- https://github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.md#3249---20200324 Release Notes, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/commit/82f4a25b28fd622393da6592dc9e5ccee7fc5be3#diff-52fd042c50432133a00a8f840f4a6165 Patch, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/releases/tag/3.2.49 Release Notes, Third Party Advisory
- https://isec.pl/en/vulnerabilities/isec-0028-seomatic-ssti-23032020.txt Exploit, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/blob/v3/CHANGELOG.md#3249---20200324 Release Notes, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/commit/82f4a25b28fd622393da6592dc9e5ccee7fc5be3#diff-52fd042c50432133a00a8f840f4a6165 Patch, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/releases/tag/3.2.49 Release Notes, Third Party Advisory
- https://isec.pl/en/vulnerabilities/isec-0028-seomatic-ssti-23032020.txt Exploit, Third Party Advisory