Authenticated script execution via unencoded 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 via a crafted admin URI. The authorization include copies the final REQUEST_URI segment into lang_header, and admin/header.php inserts it into an onclick attribute without validation or output encoding. A Superuser, Editor, or Writer must open the crafted edit-subscriber.php URL; the payload then runs in that authenticated user's browser context.
Summary
What happened
Reflected XSS in Chadha PHPKB Standard Multi-Language 9 allows remote authenticated users to execute script via a crafted admin URI. The authorization include copies the final REQUEST_URI segment into lang_header, and admin/header.php inserts it into an onclick attribute without validation or output encoding. A Superuser, Editor, or Writer must open the crafted edit-subscriber.php URL; the payload then runs in that authenticated user's browser context.
The record
- CVE
- CVE-2020-10408
- Published
- Mar 12, 2020
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-79, T1203
- 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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What is affected?
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Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
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 v9 administration-panel reflected-XSS proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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