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CVSS Score
-| Package Name | Ecosystem | Vulnerable Versions | First Patched Version |
|---|---|---|---|
| phpmyadmin/phpmyadmin | composer | >= 4.6, < 4.6.4 | 4.6.4 |
| phpmyadmin/phpmyadmin | composer | >= 4.4, < 4.4.15.8 | 4.4.15.8 |
| phpmyadmin/phpmyadmin | composer | >= 4.0, < 4.0.10.17 | 4.0.10.17 |
The vulnerability allows attackers to determine if a user is logged in by observing differences in system responses. The core issue likely stems from authentication-checking functions leaking state information. The PHPMyAdmin advisory references commits patching session handling (e.g., 754c1c9, 61591c4), which typically involve modifications to authentication logic in central files like libraries/common.inc.php. The PMA_checkAuthentication() function is a prime candidate as it's central to session validation and would need hardening to prevent information leakage about login state through response patterns.
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