Impact Users of Adminer versions supporting SQL command (most versions, e.g. MySQL) using browsers not encoding URL parameters before sending to server (likely Edge, not Chrome, not Firefox) are affected.

Patches Patched by 5c395afc, included in version 4.7.9.

Workarounds Use browser which encodes URL parameters (e.g. Chrome or Firefox).

References https://sourceforge.net/p/adminer/bugs-and-features/775/

For more information If you have any questions or comments about this advisory: Comment at https://sourceforge.net/p/adminer/bugs-and-features/775/

Adminer is open-source database management software. A cross-site scripting vulnerability in Adminer versions 4.6.1 to 4.8.0 affects users of MySQL, MariaDB, PgSQL and SQLite. XSS is in most cases prevented by strict CSP in all modern browsers. The only exception is when Adminer is using a pdo extension to communicate with the database (it is used if the native extensions are not enabled). In browsers without CSP, Adminer versions 4.6.1 to 4.8.0 are affected. The vulnerability is patched in version 4.8.1. As workarounds, one can use a browser supporting strict CSP or enable the native PHP extensions (e.g. mysqli) or disable displaying PHP errors (displayerrors).