Persistent Login <= 3.1.0 - Authenticated (Subscriber+) SQL Injection via 'wppl_device_id' Cookie
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
The Persistent Login plugin for WordPress is vulnerable to generic SQL Injection via 'wppl_device_id' Cookie in all versions up to, and including, 3.1.0 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with subscriber-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This vulnerability is only exploitable when the plugin's Login History feature is enabled.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
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 |
|---|---|---|---|---|---|
| lukeseager | Persistent Login | up to 3.1.0 | — | No fix listed | CNA |
- Persistent Login Vendorlukeseager Affected up to 3.1.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-18752
- 2026-10-03 Alias added: GHSA-9vm5-hh7p-3w4x
References
Other 5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/2d980542-bc8e-409a-a19c-0c158df6ee95?source=cve
- https://plugins.trac.wordpress.org/browser/wp-persistent-login/tags/3.1.0/classes/wp-persistent-login-login-history.php#L278
- https://plugins.trac.wordpress.org/browser/wp-persistent-login/tags/3.1.0/classes/wp-persistent-login.php#L36
- https://plugins.trac.wordpress.org/browser/wp-persistent-login/tags/3.1.0/classes/wp-persistent-login-login-history.php#L61
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3648199%40wp-persistent-login&new=3648199%40wp-persistent-login
More lukeseager vulnerabilities
- TI-2026-47265 WordPress WordPress Persistent Login plugin <= 3.1.0 - SQL Injection vulnerability CVSS 3.1HIGH 8.5
- TI-2026-63301 WordPress WordPress Persistent Login plugin <= 3.1.3 - Cross Site Scripting (XSS) vulnerability CVSS 3.1HIGH 7.1
- TI-2022-04562 Freemius SDK <= 2.4.2 - Missing Authorization Checks CVSS 3.1MEDIUM 6.3
Sources
- CVE-2026-18752 · CVE Program
- CVE-2026-18752 · NVD
- FIRST EPSS
- GHSA-9vm5-hh7p-3w4x · 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