Login Request a demo
Medium severity · published Oct 10, 2026
CVE-2026-104023
Smart Popup by Supsystic <= 1.13.2 - Authenticated (Administrator+) SQL Injection via 'sidx' Parameter
4.9
CVSS
0.4%
EPSS
No
On KEV
Description
The Smart Popup by Supsystic plugin for WordPress is vulnerable to generic SQL Injection via the 'sidx' parameter in all versions up to, and including, 1.13.2 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 administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SP
Smart Popup by Supsystic · supsysticcom
through 1.13.2 · source: vendor
Affected product
SP
Smart Popup by Supsystic
supsysticcom
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-104023
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-104023
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/1fdf895c-dd2a-4e2c-b323-a42226982cb7?source=cve
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.13.2/modules/popup/controller.php#L57
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.13.2/classes/table.php#L269
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.13.2/classes/db.php#L36
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.13.2/classes/controller.php#L188
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/popup-by-supsystic/tags/1.13.2/classes/controller.php#L239
More from Smart Popup by Supsystic
8.8
CVE-2026-18322
Smart Popup by Supsystic <= 1.12.0 - Unauthenticated Privilege Escalation to Administrator