6Storage Rentals <= 2.27.0 - Unauthenticated Account Takeover via 'email' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-287.
Summary
The 6Storage Rentals plugin for WordPress is vulnerable to authentication bypass in versions up to, and including, 2.27.0. This is due to the six_storage_create_wp_user() AJAX handler being registered on wp_ajax_nopriv_six_storage_create_wp_user without any nonce, capability, credential, or ownership verification, while calling wp_set_current_user() and wp_set_auth_cookie() for any WordPress user resolved by the attacker-supplied email address. This makes it possible for unauthenticated attackers to log in as any existing WordPress user, including administrators, by submitting that user's email address.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| sixstorage | 6Storage Rentals | up to 2.27.0 | — | No fix listed | CNA |
- 6Storage Rentals Vendorsixstorage Affected up to 2.27.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-15303
- 2026-10-03 Alias added: GHSA-q5fr-2gmw-7f29
References
Other 4
- https://www.wordfence.com/threat-intel/vulnerabilities/id/94e987be-bdfc-4691-b250-2b7d7249df0a?source=cve
- https://plugins.trac.wordpress.org/browser/6storage-rentals/tags/2.27.0/inc/Base/Six_Storage_DashboardController.php#L3905
- https://plugins.trac.wordpress.org/browser/6storage-rentals/tags/2.27.0/inc/Base/Six_Storage_DashboardController.php#L3834
- https://plugins.trac.wordpress.org/browser/6storage-rentals/tags/2.27.0/inc/Base/Six_Storage_DashboardController.php#L14
More sixstorage vulnerabilities
- TI-2026-08074 Authorization bypass in sixstorage 6Storage Rentals CVSS 3.1HIGH 7.5
Sources
- CVE-2026-15303 · CVE Program
- CVE-2026-15303 · NVD
- FIRST EPSS
- GHSA-q5fr-2gmw-7f29 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences