CVE-2023-34448
CVSS v3
7.2
HIGH
EPSS Score
6.8 %
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default `filter()` function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke arbitrary unsafe functions, thereby allowing for remote code execution. A patch in version 1.74.2 overrides the built-in Twig `map()` and `reduce()` filter functions in `system/src/Grav/Common/Twig/Extension/GravExtension.php` to validate the argument passed to the filter in `$arrow`.
Technical details
- Published
- 2023-06-14
Frequently asked questions
What is CVE-2023-34448?
Grav is a flat-file content management system. Prior to version 1.7.42, the patch for CVE-2022-2073, a server-side template injection vulnerability in Grav leveraging the default `filter()` function, did not block other built-in functions exposed by Twig's Core Extension that could be used to invoke arbitrary unsafe functions, thereby allowing for remote code execution. A patch in version 1.74.2 overrides the built-in Twig `map()` and `reduce()` filter functions in `system/src/Grav/Common/Twig/Extension/GravExtension.php` to validate the argument passed to the filter in `$arrow`.
Is CVE-2023-34448 actively exploited?
Active exploitation of CVE-2023-34448 has not been confirmed. The EPSS score is 6.8%, indicating the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2023-34448?
CVE-2023-34448 has a CVSS v3 base score of 7.2 (HIGH severity).
Is CVE-2023-34448 affecting your environment?
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