CVE-2021-23824

Public Exploit
Content Injection

Description

This affects the package Crow before 0.3+4. When using attributes without quotes in the template, an attacker can manipulate the input to introduce additional attributes, potentially executing code. This may lead to a Cross-site Scripting (XSS) vulnerability, assuming an attacker can influence the value entered into the template. If the template is used to render user-generated content, this vulnerability may escalate to a persistent XSS vulnerability.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.28%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory snyk.io
Affected: n/a Crow
Published at:
Updated at:

References

Link Tags
https://github.com/CrowCpp/Crow/pull/317 issue tracking third party advisory patch
https://github.com/CrowCpp/Crow/releases/tag/v0.3%2B4 third party advisory release notes
https://snyk.io/vuln/SNYK-UNMANAGED-CROW-2336164 third party advisory exploit

Frequently Asked Questions

What is the severity of CVE-2021-23824?
CVE-2021-23824 has been scored as a medium severity vulnerability.
How to fix CVE-2021-23824?
To fix CVE-2021-23824, 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-2021-23824 being actively exploited in the wild?
It is possible that CVE-2021-23824 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-23824?
CVE-2021-23824 affects n/a Crow.
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