Stored script execution via unescaped customer fields
Published Jan 27, 2026 · Updated Jan 27, 2026
Stored XSS in Froxlor 0.10.16 allows remote authenticated users to execute scripts in an administrator's browser through customer fields. The customer module stores username, name, and firstname values, and the admin traffic view renders them without output escaping. A customer or reseller account can plant the payload, but execution requires an administrator to open that view, enabling session theft, phishing, redirects, or backend-page manipulation.
Summary
What happened
Stored XSS in Froxlor 0.10.16 allows remote authenticated users to execute scripts in an administrator's browser through customer fields. The customer module stores username, name, and firstname values, and the admin traffic view renders them without output escaping. A customer or reseller account can plant the payload, but execution requires an administrator to open that view, enabling session theft, phishing, redirects, or backend-page manipulation.
The record
- CVE
- CVE-2020-36978
- Published
- Jan 27, 2026
- Updated
- Jan 27, 2026
- Vendor
- Froxlor
- Product
- Froxlor
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 27, 2026CVE publishedPublication date reported by the CVE source.
- Jan 27, 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=0.10.16
What conditions does exploitation require?
What is affected?
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
- Froxlor 0.10.16 Persistent Cross-Site Scripting Proof of Conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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