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Vulnerability record · CVE-2021-31862 · published 29 October 2021

CVE-2021-31862: Sysaid cross-site scripting vulnerability

Sysaid · Sysaid

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

6.1 CVSS 3.1 Medium EPSS 4.0% · top 9.8% CWE-79 · Cross-site scripting
6.1CVSS 3.1 base score, v2 4.3
4.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/RobertDra/CVE-2021-31862/blob/main/README.md ExploitThird Party Advisory
https://www.sysaid.com/product/on-premise/latest-release Release NotesVendor Advisory
https://github.com/RobertDra/CVE-2021-31862/blob/main/README.md ExploitThird Party Advisory
https://www.sysaid.com/product/on-premise/latest-release Release NotesVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2025-2776SysAid On-Prem unauthenticated XXE in Server URL processingSysAid On-Prem versions up to 23.3.40 process the Server URL without restricting XML external entities, so an unauthenticated attacker can supply cra…KEVEPSS 64%analysed9.8CVE-2023-47246SysAid On-Premise path traversal leads to remote code executionSysAid On-Premise before 23.3.36 contains a path traversal flaw that lets an unauthenticated attacker write a file into the Tomcat webroot, which the…KEVEPSS 99%analysed7.5CVE-2025-2775SysAid On-Prem unauthenticated XXE in Checkin processingSysAid On-Prem versions up to 23.3.40 process Checkin XML without restricting external entities, so an unauthenticated attacker can supply a crafted …KEVEPSS 43%analysed9.8CVE-2025-2777SysAid On-Prem unauthenticated XXE in lshw processingSysAid On-Prem versions up to 23.3.40 process lshw data through an XML parser that resolves external entities, so an unauthenticated request can trig…EPSS 72%analysed9.8CVE-2024-36393Sysaid sql injection vulnerabilitySysAid - CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')EPSS 0.42%9.8CVE-2024-36394Sysaid os command injection vulnerabilitySysAid - CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')EPSS 1.1%9.8CVE-2022-23166Sysaid path traversal vulnerabilitySysaid – Sysaid Local File Inclusion (LFI) – An unauthenticated attacker can access to the system by accessing to "/lib/tinymce/examples/index.html" …EPSS 1.1%9.8CVE-2022-22796Sysaid improper authentication vulnerabilitySysaid – Sysaid System Takeover - An attacker can bypass the authentication process by accessing to: /wmiwizard.jsp, Then to: /ConcurrentLogin.jsp, t…EPSS 1.4%

Source: NIST National Vulnerability Database (record CVE-2021-31862), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.