Subscriber-level script execution via wizard state
Published Feb 7, 2026 · Updated Feb 7, 2026
Stored XSS in Premmerce 1.3.20 and earlier allows remote authenticated users to execute scripts through the Wizard admin page. The premmerce_wizard_actions AJAX handler accepts a subscriber-controlled state value without a capability check or sanitization, stores it, and the wizard view prints it without output escaping. Subscriber-level access is sufficient; the injected script runs when a user opens the affected administrative page, enabling browser-context data access or actions with that visitor's privileges.
Summary
What happened
Stored XSS in Premmerce 1.3.20 and earlier allows remote authenticated users to execute scripts through the Wizard admin page. The premmerce_wizard_actions AJAX handler accepts a subscriber-controlled state value without a capability check or sanitization, stores it, and the wizard view prints it without output escaping. Subscriber-level access is sufficient; the injected script runs when a user opens the affected administrative page, enabling browser-context data access or actions with that visitor's privileges.
The record
- CVE
- CVE-2026-0555
- Published
- Feb 7, 2026
- Updated
- Feb 7, 2026
- Vendor
- Premmerce
- Product
- Premmerce
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 7, 2026CVE publishedPublication date reported by the CVE source.
- Feb 7, 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=* <=1.3.20
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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