Reflected XSS via double-decoded login redirect
Published Jun 22, 2024 · Updated Jan 14, 2025
Reflected XSS in OpenCart 4.0.0.0 and later allows remote attackers to inject HTML and JavaScript through a crafted login redirect. The account login controller URL-decodes the attacker-controlled redirect before login.twig places it in a hidden input value, allowing encoded markup to enter the response. No account is required, but a customer must follow the crafted URL; resulting script executes in the shop origin and can access or alter browser-exposed data.
Summary
What happened
Reflected XSS in OpenCart 4.0.0.0 and later allows remote attackers to inject HTML and JavaScript through a crafted login redirect. The account login controller URL-decodes the attacker-controlled redirect before login.twig places it in a hidden input value, allowing encoded markup to enter the response. No account is required, but a customer must follow the crafted URL; resulting script executes in the shop origin and can access or alter browser-exposed data.
The record
- CVE
- CVE-2024-21517
- Published
- Jun 22, 2024
- Updated
- Jan 14, 2025
- Vendor
- OpenCart
- Product
- OpenCart
- Classifications
- CWE-79, T1203
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 22, 2024CVE publishedPublication date reported by the CVE source.
- Jan 14, 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=0 <4.0.0.0
- Affected versionversion=4.0.0.0 <*
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
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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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