XSS in Beyondtrust Appliance Base Software
CVE-2021-31589
A cross-site scripting (XSS) vulnerability has been reported and confirmed for BeyondTrust Secure Remote Access Base Software version 6.0.1 and older, which allows the injection of unauthenticated, specially-crafted web requests without proper sanitization.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.282 (97.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Beyondtrust Appliance_base_software
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Release Notes, Vendor Advisory)
- cve@mitre.org (Exploit, VDB Entry, Third Party Advisory, x_refsource_MISC)
- cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
Frequently asked questions
- What is CVE-2021-31589?
- CVE-2021-31589 is a medium-severity vulnerability in Beyondtrust Appliance Base Software, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2022-01-05.
- How severe is CVE-2021-31589?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2021-31589 known to be exploited?
- 10 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.