CVE-2026-13492 json
UsersWP <= 1.2.65 - Authenticated (Subscriber+) Arbitrary File Deletion via File Upload Field
published 2026-07-09 4 mo ago modified 2026-07-10 4 mo ago also EUVD-2026-42686
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 52%
- public exploits
- 0
- none known
Summary
The UsersWP plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.2.65. This is due to insufficient validation of file-field values in the UsersWP_Validation::validate_fields() function (which falls through to sanitize_text_field() for fields of type 'file', leaving directory-traversal sequences intact) combined with the UsersWP_Forms::upload_file_remove() AJAX handler building the deletion target from the uploads basedir concatenated with the attacker-controlled metadata value without any realpath canonicalization or uploads-directory boundary check before calling unlink(). This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary files on the affected site's server, including wp-config.
Patch / fix
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 mo ago
Exploit prediction
0.69% chance of exploitation in the next 30 days, higher than 52% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- stiofansisland UsersWP – Front-end login form, User Registration, User Profile & Members Directory plugin for WP
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
- Technology feeds
References
- github.com /AyeCode/userswp/commit/ddb17ad30ff3384cda85c5f372db30b03bd45ac8
- wordfence.com /threat-intel/vulnerabilities/id/b6cf6390-480f-44e2-ae36-67e3398add33?source=cve
- plugins.trac.wordpress.org /browser/userswp/tags/1.2.65/includes/class-forms.php#L2323
- plugins.trac.wordpress.org /browser/userswp/tags/1.2.65/includes/class-forms.php#L2320
- plugins.trac.wordpress.org /browser/userswp/tags/1.2.65/includes/class-validation.php#L190
- plugins.trac.wordpress.org /browser/userswp/tags/1.2.65/includes/class-forms.php#L1059
- plugins.trac.wordpress.org /browser/userswp/tags/1.2.65/includes/class-forms.php#L1973
- plugins.trac.wordpress.org /changeset/3590340/userswp
Sources
- CVE List CVE-2026-13492
- NVD CVE-2026-13492
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.