XSS in Crowcpp Crow

CVE-2021-23824

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…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.009 (55.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • report@snyk.io (Patch, Third Party Advisory, x_refsource_MISC, Issue Tracking)
  • report@snyk.io (Third Party Advisory, x_refsource_MISC, Release Notes)
  • report@snyk.io (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-23824?
CVE-2021-23824 is a medium-severity vulnerability in Crowcpp Crow, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2022-01-13.
How severe is CVE-2021-23824?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2021-23824 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.