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)
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.336 (98.3th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.336 · newest: 0.336 · change: 0.000
Affected products
- Webmin — versions 1.973
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/webmin/webmin (Product, Third Party Advisory)
- youtu.be/23VvUMu-28c (Exploit, Third Party Advisory)
- github.com/Mesh3l911/CVE-2021-31761 (Exploit, Third Party Advisory)
- github.com/electronicbots/CVE-2021-31761 (Exploit, Third Party Advisory)
- packetstormsecurity.com/files/163559/Webmin-1.973-Cross-Site-Request-Forgery.ht… (Exploit, VDB Entry, Third Party Advisory)
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.