Description
The createComment mutation in the WPGraphQL 0.2.3 plugin for WordPress allows unauthenticated users to post comments on any article, even when 'allow comment' is disabled.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- WordPress Plugin WPGraphQL 0.2.3 - Multiple Vulnerabilities EDB-46886 · webapps · May 21, 2019
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- WPEngine WPGraphQL 0.2.3 - Unauthenticated Comment Posting http/cves/2019/CVE-2019-9881.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.
References
- https://wpvulndb.com/vulnerabilities/9282
- http://packetstormsecurity.com/files/153025/WordPress-WPGraphQL-0.2.3-Authentication-Bypass-Information-Disclosure.html
- https://www.pentestpartners.com/security-blog/pwning-wordpress-graphql/
- https://github.com/pentestpartners/snippets/blob/master/wp-graphql0.2.3_exploit.py
- https://github.com/wp-graphql/wp-graphql/releases/tag/v0.3.0