Stored script injection via missing nonce validation
Published May 17, 2025 · Updated Apr 8, 2026
CSRF in AlT Monitoring 1.0.3 and earlier allows remote attackers to inject stored scripts by inducing an administrator request. The ALT_Monitoring_edit page accepts settings changes without correct nonce validation, allowing attacker-controlled script content to be stored. An administrator must be authenticated and tricked into submitting the forged request; the stored script then executes in visitors' browsers.
Summary
What happened
CSRF in AlT Monitoring 1.0.3 and earlier allows remote attackers to inject stored scripts by inducing an administrator request. The ALT_Monitoring_edit page accepts settings changes without correct nonce validation, allowing attacker-controlled script content to be stored. An administrator must be authenticated and tricked into submitting the forged request; the stored script then executes in visitors' browsers.
The record
- CVE
- CVE-2025-4194
- Published
- May 17, 2025
- Updated
- Apr 8, 2026
- Vendor
- AlTi5
- Product
- AlT Monitoring
- Classifications
- CWE-352, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 17, 2025CVE publishedPublication date reported by the CVE source.
- Apr 8, 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?
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- Affected versionversion=0 <=1.0.3
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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