Authenticated data alteration via Angular template injection
Published May 19, 2026 · Updated May 19, 2026
Angular template injection in Nozomi Networks Guardian and CMC Reports before 26.1.0 allows remote authenticated users to alter application data. Reports input validation accepts an Angular template payload in a report definition or imported template and evaluates it in the viewer's browser; Nozomi has not identified the exact parameter or code locus. Exploitation requires report privileges or a victim who imports or views the crafted report; existing validation and Content Security Policy prevent full XSS and direct disclosure, but data alteration and service interruption remain possible.
Summary
What happened
Angular template injection in Nozomi Networks Guardian and CMC Reports before 26.1.0 allows remote authenticated users to alter application data. Reports input validation accepts an Angular template payload in a report definition or imported template and evaluates it in the viewer's browser; Nozomi has not identified the exact parameter or code locus. Exploitation requires report privileges or a victim who imports or views the crafted report; existing validation and Content Security Policy prevent full XSS and direct disclosure, but data alteration and service interruption remain possible.
The record
- CVE
- CVE-2025-40900
- Published
- May 19, 2026
- Updated
- May 19, 2026
- Vendor
- Nozomi Networks
- Product
- Guardian
- Classifications
- CWE-1336, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- May 19, 2026CVE publishedPublication date reported by the CVE source.
- May 19, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <26.1.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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