Vulnerability Details : 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.
Vulnerability category: Execute code
Products affected by CVE-2021-41749
- cpe:2.3:a:nystudio107:seomatic:*:*:*:*:*:craft_cms:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-41749
85.70%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 99 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-41749
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.5
|
HIGH | AV:N/AC:L/Au:N/C:P/I:P/A:P |
10.0
|
6.4
|
NIST | |
|
9.8
|
CRITICAL | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
3.9
|
5.9
|
NIST |
CWE ids for CVE-2021-41749
-
The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-41749
-
https://github.com/nystudio107/craft-seomatic/blob/develop/CHANGELOG.md
craft-seomatic/CHANGELOG.md at develop · nystudio107/craft-seomatic · GitHubRelease Notes;Third Party Advisory
-
https://github.com/nystudio107/craft-seomatic/commit/3fee7d50147cdf3f999cfc1e04cbc3fb3d9f2f7d
Sanitize the canonical URL after the absolute URL has been returned, … · nystudio107/craft-seomatic@3fee7d5 · GitHubPatch;Third Party Advisory
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