Reflected XSS via unescaped error response content
Published Sep 30, 2021 · Updated Apr 30, 2025
Reflected XSS in Shuup 1.6.0 through 2.10.8 allows remote attackers to execute JavaScript in a victim's browser via crafted URLs. Several error-producing views interpolate request-derived path, command, view, argument, and exception text into HTML responses without escaping it. No authentication is required, but a victim must open a crafted request; the script runs in the victim's browser context and can read or modify data accessible to that session.
Summary
What happened
Reflected XSS in Shuup 1.6.0 through 2.10.8 allows remote attackers to execute JavaScript in a victim's browser via crafted URLs. Several error-producing views interpolate request-derived path, command, view, argument, and exception text into HTML responses without escaping it. No authentication is required, but a victim must open a crafted request; the script runs in the victim's browser context and can read or modify data accessible to that session.
The record
- CVE
- CVE-2021-25963
- Published
- Sep 30, 2021
- Updated
- Apr 30, 2025
- Vendor
- Shuup Commerce Inc.
- Product
- Shuup
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Sep 30, 2021CVE publishedPublication date reported by the CVE source.
- Apr 30, 2025Record 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=1.6.0 <*
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
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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