CVE-2026-102100: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Kiteworks Core
Kiteworks Core versions prior to 9.5.0 contain a stored cross-site scripting (XSS) vulnerability. This flaw allows an authenticated user to submit malicious content that executes arbitrary JavaScript in the context of another user's authenticated session when viewed. Successful exploitation could enable attackers to perform actions on behalf of the victim, potentially leading to account takeover, including accounts with higher privileges. Exploitation requires the victim to view the malicious content. The vulnerability has a high severity rating with a CVSS score of 8.7.
AI Analysis
Technical Summary
CVE-2026-102100 is a stored cross-site scripting vulnerability in Kiteworks Core before version 9.5.0. An authenticated user can inject malicious scripts into content that is stored and later rendered to other users. When a victim views this content, the embedded JavaScript executes within their authenticated session, potentially allowing the attacker to perform unauthorized actions or take over accounts, including those with elevated privileges. The vulnerability requires user interaction to trigger the malicious script execution.
Potential Impact
The vulnerability allows attackers to execute arbitrary JavaScript in the context of another user's session, which can lead to unauthorized actions and account takeover, including of higher-privileged users. This compromises confidentiality and integrity of user accounts but does not affect availability. The CVSS 3.1 score of 8.7 reflects high impact on confidentiality and integrity with network attack vector, low attack complexity, and requiring user interaction.
Mitigation Recommendations
A fix is available in Kiteworks Core version 9.5.0 and later. Users should upgrade to version 9.5.0 or newer to remediate this vulnerability. Since this is not a cloud service, remediation depends on applying the vendor's patch. No other mitigation guidance is provided in the input data.
CVE-2026-102100: CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in Kiteworks Core
Description
Kiteworks Core versions prior to 9.5.0 contain a stored cross-site scripting (XSS) vulnerability. This flaw allows an authenticated user to submit malicious content that executes arbitrary JavaScript in the context of another user's authenticated session when viewed. Successful exploitation could enable attackers to perform actions on behalf of the victim, potentially leading to account takeover, including accounts with higher privileges. Exploitation requires the victim to view the malicious content. The vulnerability has a high severity rating with a CVSS score of 8.7.
CVSS v3.1
Score 8.7high
Affected software
Kiteworks
Core
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-102100 is a stored cross-site scripting vulnerability in Kiteworks Core before version 9.5.0. An authenticated user can inject malicious scripts into content that is stored and later rendered to other users. When a victim views this content, the embedded JavaScript executes within their authenticated session, potentially allowing the attacker to perform unauthorized actions or take over accounts, including those with elevated privileges. The vulnerability requires user interaction to trigger the malicious script execution.
Potential Impact
The vulnerability allows attackers to execute arbitrary JavaScript in the context of another user's session, which can lead to unauthorized actions and account takeover, including of higher-privileged users. This compromises confidentiality and integrity of user accounts but does not affect availability. The CVSS 3.1 score of 8.7 reflects high impact on confidentiality and integrity with network attack vector, low attack complexity, and requiring user interaction.
Mitigation Recommendations
A fix is available in Kiteworks Core version 9.5.0 and later. Users should upgrade to version 9.5.0 or newer to remediate this vulnerability. Since this is not a cloud service, remediation depends on applying the vendor's patch. No other mitigation guidance is provided in the input data.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- cisa-cg
- Date Reserved
- 2026-09-28T17:39:13.561Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6abd724b2a4e24523d8ebdf1
Added to database: 09/30/2026, 20:34:19 UTC
Last enriched: 09/30/2026, 21:19:14 UTC
Last updated: 09/30/2026, 22:59:34 UTC
Views: 3
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