Cross-site scripting via unsanitized socket output
Published Dec 1, 2021 · Updated Aug 4, 2024
Cross-site scripting in YurunProxy v0.01 allows remote attackers to execute script in a victim's browser via crafted socket data. The src/Client.php exit function prints socket_read output directly in its termination message without HTML escaping, allowing attacker-controlled markup to reach rendered responses. Exploitation requires a victim to receive and process the affected response; the documented impact is limited to browser-side script execution and related data access within that context.
Summary
What happened
Cross-site scripting in YurunProxy v0.01 allows remote attackers to execute script in a victim's browser via crafted socket data. The src/Client.php exit function prints socket_read output directly in its termination message without HTML escaping, allowing attacker-controlled markup to reach rendered responses. Exploitation requires a victim to receive and process the affected response; the documented impact is limited to browser-side script execution and related data access within that context.
The record
- CVE
- CVE-2021-43690
- Published
- Dec 1, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1189
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 1, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
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What is affected?
Affected products and versions are unavailable in this record.
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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