CVE-2026-9178 json
WP Forms Connector <= 1.8 - Missing Authorization to Unauthenticated Information Exposure via 'user/list' REST Endpoint
published 2026-06-24 4 mo ago modified 2026-06-25 4 mo ago also EUVD-2026-38689
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.6%
- EPSS 0.6% chance of exploitation in 30 days, percentile 49%
- public exploits
- 0
- none known
Summary
The WP Forms Connector plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.8. The plugin registers the REST route wp/v3/user/list/<id> (callback userDetail()) with permission_callback set to '__return_true', and the function's home-grown authentication only verifies that the supplied 'Username' HTTP header maps to an administrator account and that a 'Password' HTTP header is non-empty. It never validates the password with wp_check_password() (unlike the sibling delete_wc_user() function which does). This makes it possible for unauthenticated attackers to retrieve sensitive information for any registered user ID — including the WordPress password hash (user_pass) and email address — by sending a request with a valid administrator login name (commonly the default 'admin') and any arbitrary password value.
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.61% chance of exploitation in the next 30 days, higher than 49% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
Affected products
- hancock11 WP Forms Connector
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/f5dfafee-9b6c-4e57-b263-39ff15cd3b51?source=cve
- plugins.trac.wordpress.org /browser/wp-forms-connector/tags/1.8/WP-Forms-Connector.php#L1490
- plugins.trac.wordpress.org /browser/wp-forms-connector/tags/1.8/WP-Forms-Connector.php#L1477
- plugins.trac.wordpress.org /browser/wp-forms-connector/tags/1.8/WP-Forms-Connector.php#L1464
- plugins.trac.wordpress.org /browser/wp-forms-connector/tags/1.8/WP-Forms-Connector.php#L739
Sources
- CVE List CVE-2026-9178
- NVD CVE-2026-9178
Fencer Vulns 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.