CVE-2021-41749
CRITICALCVSS 9.8/10EPSS 17.25%
Last modified
CVE-2021-41749 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. In the SEOmatic plugin up to 3.4.11 for Craft CMS 3, it is possible for unauthenticated attackers to perform a Server-Side Template Injection, allowing for remote code execution.. EPSS estimates a 17.25% chance of exploitation in the next 30 days.
Description
In the SEOmatic plugin up to 3.4.11 for Craft CMS 3, it is possible for unauthenticated attackers to perform a Server-Side Template Injection, allowing for remote code execution.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Nystudio107 | Seomatic | <= 3.4.11 |
References
- https://github.com/nystudio107/craft-seomatic/blob/develop/CHANGELOG.mdRelease Notes, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/commit/3fee7d50147cdf3f999cfc1e04cbc3fb3d9f2f7dPatch, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/blob/develop/CHANGELOG.mdRelease Notes, Third Party Advisory
- https://github.com/nystudio107/craft-seomatic/commit/3fee7d50147cdf3f999cfc1e04cbc3fb3d9f2f7dPatch, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-41749?
In the SEOmatic plugin up to 3.4.11 for Craft CMS 3, it is possible for unauthenticated attackers to perform a Server-Side Template Injection, allowing for remote code execution.
How severe is CVE-2021-41749?
CVE-2021-41749 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 17.25% probability of exploitation in the next 30 days.
How do I fix CVE-2021-41749?
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-2021-41749?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST