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.
CVE-2021-31589
MEDIUMNVD 6.16.1—Elevated
EchelonGraph scoreMEDIUM confidence
This medium-severity CVE scores 6.1 under NVD CVSS v3. EPSS exploit probability: 28.2%, top 2% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 28%CVSS: 6.1Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(medium)
- EG Risk
- 48(Track)EG Risk 48/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity61% × 45%Exploitation40% × 40%Automatability30% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 28%
- EPSS %ILE
- 98%
- KEV
- Not listed
Published
January 5, 2022
Last Modified
November 21, 2024
References (6)
- cve@mitrehttp://packetstormsecurity.com/files/165408/BeyondTrust-Remote-Support-6.0-Cross-Site-Scripting.html
- cve@mitrehttps://cxsecurity.com/issue/WLB-2022010013
- cve@mitrehttps://www.beyondtrust.com/docs/release-notes/index.htm
- af854a3a-2127-422b-91ae-364da2661108http://packetstormsecurity.com/files/165408/BeyondTrust-Remote-Support-6.0-Cross-Site-Scripting.html
- af854a3a-2127-422b-91ae-364da2661108https://cxsecurity.com/issue/WLB-2022010013
- af854a3a-2127-422b-91ae-364da2661108https://www.beyondtrust.com/docs/release-notes/index.htm
Frequently asked(5)
What is CVE-2021-31589?
CVE-2021-31589 is a medium vulnerability published on January 5, 2022. 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.
When was CVE-2021-31589 disclosed?
CVE-2021-31589 was first published in the National Vulnerability Database on January 5, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-31589 actively exploited?
CVE-2021-31589 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 28% probability of exploitation in the next 30 days, which ranks it in the top 2.1% of all scored CVEs.
What is the CVSS score of CVE-2021-31589?
CVE-2021-31589 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2021-31589?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-31589, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2021-31589
Is Your Infrastructure Affected by CVE-2021-31589?
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