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TI-2021-11853 Aliases CVE-2021-31862GHSA-vvgj-cxq9-3437

SysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication.

Priority LOW 34CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-79.

Summary

SysAid 20.4.74 allows XSS via the KeepAlive.jsp stamp parameter without any authentication.

Why it matters now

EPSS 0.03985 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sysaid:sysaid:20.4.74:*:*:*:*:*:*:*20.4.74VulnerableSysAid
  • cpe:2.3:a:sysaid:sysaid:20.4.74:*:*:*:*:*:*:* Versions 20.4.74 Vulnerable ·SysAid

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-31862
  2. 2026-10-03 Alias added: GHSA-vvgj-cxq9-3437

References

Exploit 1

Advisory 1

  • TI-2023-25564 In SysAid On-Premise before 23.3.36, a path traversal vulnerability leads to code… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-02427 SysAid On-Prem <= 23.3.40 serverurl Proceessing XML External Entity Injection KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-02426 SysAid On-Prem <= 23.3.40 Checkin Proceessing XML External Entity Injection KEVCVSS 3.1CRITICAL 9.3
  • TI-2025-02428 SysAid On-Prem <= 23.3.40 lshw Proceessing XML External Entity Injection CVSS 3.1CRITICAL 9.8
  • TI-2015-02650 Multiple directory traversal vulnerabilities in SysAid Help Desk before 15.2 allow remote… CVSS 2.0HIGH 8.5
  • TI-2015-02647 SysAid Help Desk before 15.2 does not properly restrict access to certain functionality… CVSS 2.0HIGH 7.5
See all 28 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences