CVE-2021-32819

Public Exploit
Remote code execution in squirrelly

Description

Squirrelly is a template engine implemented in JavaScript that works out of the box with ExpressJS. Squirrelly mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options remote code execution may be triggered in downstream applications. This issue is fixed in version 9.0.0. For complete details refer to the referenced GHSL-2021-023.

Category

8.0
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 88.89% Top 5%
Third-Party Advisory github.com
Affected: squirrellyjs squirrelly
Published at:
Updated at:

References

Link Tags
https://securitylab.github.com/advisories/GHSL-2021-023-squirrelly/ third party advisory exploit
https://github.com/squirrellyjs/squirrelly/pull/254
https://github.com/squirrellyjs/squirrelly/commit/c12418a026f73df645ba927fd29358efe02fed1e
https://github.com/squirrellyjs/squirrelly/commit/dca7a1e7ee91d8a6ffffb655f3f15647486db9da

Frequently Asked Questions

What is the severity of CVE-2021-32819?
CVE-2021-32819 has been scored as a high severity vulnerability.
How to fix CVE-2021-32819?
To fix CVE-2021-32819, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-32819 being actively exploited in the wild?
It is possible that CVE-2021-32819 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~89% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-32819?
CVE-2021-32819 affects squirrellyjs squirrelly.
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