XSS in Webmin

CVE-2021-31761

Webmin 1.973 is affected by reflected Cross Site Scripting (XSS) to achieve Remote Command Execution through Webmin's running process feature.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.336 (98.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.6 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

Affected products

  • Webmin — versions 1.973
  • N/a — versions n/a

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • cve@mitre.org (Product, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
  • cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-31761?
CVE-2021-31761 is a critical-severity vulnerability in Webmin, classified under Cross-site Scripting. CVSS score: 9.6/10. Published 2021-04-25.
How severe is CVE-2021-31761?
Critical severity. CVSS v3 base score is 9.6 out of 10.
Is CVE-2021-31761 known to be exploited?
12 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.