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Fencer Intel
medium 5.3

CVE-2019-9881 json

The createComment mutation in the WPGraphQL 0.2.3 plugin for WordPress allows unauthenticated users to post comments on any article, even w…

published 7y ago modified 4mo ago also EUVD-2019-19237

cvss
5.3
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
18.4%
EPSS 18.4% chance of exploitation in 30 days, percentile 97%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

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.

Patch / fix

Is CVE-2019-9881 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Timeline

  1. First public exploit (EDB-46886)
  2. Published

Exploit prediction

18.35% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • EDB-46886 WordPress Plugin WPGraphQL 0.2.3 - Multiple Vulnerabilities webapps, 2019-05-21
  • Nuclei template WPEngine WPGraphQL 0.2.3 - Unauthenticated Comment Posting nuclei detection template
  • packetstormsecurity.com http://packetstormsecurity.com/files/153025/WordPress-WPGraphQL-0.2.3-Authentication-Bypass-Information-Disclosure.html referenced PoC, tagged "exploit" by a source, unverified
  • pentestpartners.com https://www.pentestpartners.com/security-blog/pwning-wordpress-graphql/ referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/pentestpartners/snippets/blob/master/wp-graphql0.2.3_exploit.py referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 5.3 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
NVD 2.0 5.0 AV:N/AC:L/Au:N/C:N/I:P/A:N

Classification

Weakness
  • CWE-306 Missing Authentication for Critical Functionality
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.