CVE-2025-40892: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in Nozomi Networks Guardian
A Stored Cross-Site Scripting vulnerability was discovered in the Reports functionality due to improper validation of an input parameter. An authenticated user with report privileges can define a malicious report containing a JavaScript payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information.
AI Analysis
Technical Summary
This vulnerability involves improper neutralization of input during web page generation (CWE-79) in Nozomi Networks Guardian. An authenticated user with report privileges can embed a JavaScript payload in a report or a victim can be tricked into importing a malicious report template. The stored XSS executes in the victim's browser context upon viewing or importing the report, enabling attackers to perform unauthorized actions including modifying application data, disrupting availability, and accessing sensitive information. The CVSS 4.0 base score is 7.1, indicating high severity with network attack vector, low attack complexity, and partial user interaction required.
Potential Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of the victim's browser session within the application. This can lead to unauthorized modification of application data, disruption of application availability, and unauthorized access to sensitive information limited to the victim's privileges. The vulnerability requires authenticated access with report privileges and some user interaction (viewing or importing the malicious report). There are no known exploits in the wild at this time.
Mitigation Recommendations
No vendor advisory or patch information is provided for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict report privileges to trusted users only and educate users to avoid importing untrusted report templates.
CVE-2025-40892: CWE-79 Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') in Nozomi Networks Guardian
Description
A Stored Cross-Site Scripting vulnerability was discovered in the Reports functionality due to improper validation of an input parameter. An authenticated user with report privileges can define a malicious report containing a JavaScript payload, or a victim can be socially engineered to import a malicious report template. When the victim views or imports the report, the XSS executes in their browser context, allowing the attacker to perform unauthorized actions as the victim, such as modify application data, disrupt application availability, and access limited sensitive information.
CVSS v4.0
Score 7.1high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves improper neutralization of input during web page generation (CWE-79) in Nozomi Networks Guardian. An authenticated user with report privileges can embed a JavaScript payload in a report or a victim can be tricked into importing a malicious report template. The stored XSS executes in the victim's browser context upon viewing or importing the report, enabling attackers to perform unauthorized actions including modifying application data, disrupting availability, and accessing sensitive information. The CVSS 4.0 base score is 7.1, indicating high severity with network attack vector, low attack complexity, and partial user interaction required.
Potential Impact
Successful exploitation allows attackers to execute arbitrary JavaScript in the context of the victim's browser session within the application. This can lead to unauthorized modification of application data, disruption of application availability, and unauthorized access to sensitive information limited to the victim's privileges. The vulnerability requires authenticated access with report privileges and some user interaction (viewing or importing the malicious report). There are no known exploits in the wild at this time.
Mitigation Recommendations
No vendor advisory or patch information is provided for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict report privileges to trusted users only and educate users to avoid importing untrusted report templates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Nozomi
- Date Reserved
- 2025-04-16T09:04:25.007Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 694401044eb3efac36886094
Added to database: 12/18/2025, 13:26:28 UTC
Last enriched: 08/11/2026, 13:08:44 UTC
Last updated: 09/10/2026, 19:36:50 UTC
Views: 269
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