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CVE-2021-31761

59
FAUCET Score

CVE-2021-31761 describes a critical reflected Cross-Site Scripting (XSS) vulnerability in Webmin version 1.973, which can be leveraged to achieve Remote Command Execution via the application's running process feature. With a CVSS score of 9.6 (CRITICAL) and an EPSS score of 0.819, this vulnerability is easily exploitable over the network with low attack complexity, requiring user interaction, and can lead to complete compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or Metasploit/Nuclei modules, an ExploitDB entry (EDB-50144) exists for a related Cross-Site Request Forgery (CSRF) vulnerability, and there is minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
1.973CPE matchmatch criteria
cpe:2.3:a:webmin:webmin:1.973:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.6CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
33.57%
Probability of exploitation in next 30 days
EPSS Percentile
98.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
ExploitDB: EDB-50144 · Jul 20, 2021
This CVE's current EPSS score of 0.3357 is in the 99th percentile among its peer group of 836 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.8 Bluesky, 0.5 Mastodon, and 1.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/163559/Webmin-1.973-Cross-Site-Request-Forgery.html
ExploitThird Party AdvisoryVDB Entry
github.com / electronicbots/CVE-2021-31761
ExploitThird Party Advisory
github.com / Mesh3l911/CVE-2021-31761
ExploitThird Party Advisory
github.com / webmin/webmin
ProductThird Party Advisory
youtu.be / 23VvUMu-28c
ExploitThird Party Advisory