Browser script execution via unescaped request URI
Published Mar 12, 2020 · Updated Aug 4, 2024
Reflected XSS in Chadha PHPKB Standard Multi-Language 9 allows remote authenticated users to execute script through a crafted admin URI. The check-authority.php code derives lang_header from the untrusted request URI, and admin/header.php embeds it in an onclick attribute without validation or output encoding. Exploitation requires a Superuser, Editor, or Writer session to visit the crafted manage-users.php URL, and the injected script runs in that user's browser context.
Summary
What happened
Reflected XSS in Chadha PHPKB Standard Multi-Language 9 allows remote authenticated users to execute script through a crafted admin URI. The check-authority.php code derives lang_header from the untrusted request URI, and admin/header.php embeds it in an onclick attribute without validation or output encoding. Exploitation requires a Superuser, Editor, or Writer session to visit the crafted manage-users.php URL, and the injected script runs in that user's browser context.
The record
- CVE
- CVE-2020-10433
- Published
- Mar 12, 2020
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1204.001
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 12, 2020CVE publishedPublication date reported by the CVE source.
- Aug 4, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
What conditions does exploitation require?
What is affected?
Affected products and versions are unavailable in this record.
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
- PHPKB administration-panel URI XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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