The Photos and Files Contest Gallery WordPress plugin before 21.2.8.1 does not sanitise and escape some parameters, which could allow unauthenticated users to perform Cross-Site Scripting attacks via certain headers.

Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in Contest Gallery plugin <= 21.1.2 versions.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the addCountS POST parameter before concatenating it to an SQL query in 4_activate.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_order POST parameter before concatenating it to an SQL query in order-custom-fields-with-and-without-search.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_multiple_files_for_post POST parameter before concatenating it to an SQL query in 0_change-gallery.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_deactivate and cg_activate POST parameters before concatenating it to an SQL query in 2_deactivate.php and 4_activate.php, respectively. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_row POST parameter before concatenating it to an SQL query in 3_row-order.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_copy_start POST parameter before concatenating it to an SQL query in copy-gallery-images.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_copy_id POST parameter before concatenating it to an SQL query in cg-copy-comments.php and cg-copy-rating.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_id POST parameter before concatenating it to an SQL query in 0_change-gallery.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_Fields POST parameter before concatenating it to an SQL query in users-registry-check-registering-and-login.php. This may allow malicious visitors to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the cg_option_id POST parameter before concatenating it to an SQL query in export-votes-all.php. This may allow malicious users with administrator privileges (i.e. on multisite WordPress configurations) to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the user_id POST parameter before concatenating it to an SQL query in ajax-functions-backend.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the wp_user_id GET parameter before concatenating it to an SQL query in management-show-user.php. This may allow malicious users with administrator privileges (i.e. on multisite WordPress configurations) to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the upload[] POST parameter before concatenating it to an SQL query in get-data-create-upload-v10.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5, Contest Gallery Pro WordPress plugin before 19.1.5 do not escape the option_id POST parameter before concatenating it to an SQL query in edit-options.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the option_id GET parameter before concatenating it to an SQL query in export-images-data.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

The Contest Gallery WordPress plugin before 19.1.5.1, Contest Gallery Pro WordPress plugin before 19.1.5.1 do not escape the option_id POST parameter before concatenating it to an SQL query in order-custom-fields-with-and-without-search.php. This may allow malicious users with at least author privilege to leak sensitive information from the site's database.

Unauth. Stored Cross-Site Scripting (XSS) vulnerability in Contest Gallery plugin <= 13.1.0.9 on WordPress.

Authenticated (author+) SQL Injection (SQLi) vulnerability in Contest Gallery plugin <= 17.0.4 at WordPress.