🔐 CVE Alert

CVE-2026-1651

MEDIUM 6.5

Email Subscribers & Newsletters <= 5.9.16 - Authenticated (Administrator+) SQL Injection via 'workflow_ids' Parameter

CVSS Score
6.5
EPSS Score
0.0%
EPSS Percentile
0th

The Email Subscribers by Icegram Express plugin for WordPress is vulnerable to SQL Injection via the 'workflow_ids' parameter in all versions up to, and including, 5.9.16 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.

CWE CWE-89
Vendor icegram
Product email subscribers & newsletters – email marketing, post notifications & newsletter plugin for wordpress
Published Mar 4, 2026
Last Updated Apr 8, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

icegram / Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress
0 ≤ 5.9.16

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/d8dc995d-912e-4d83-84cc-c99242022b82?source=cve downloads.wordpress.org: https://downloads.wordpress.org/plugin/email-subscribers.5.9.15.zip plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/email-subscribers/trunk/lite/includes/workflows/db/class-es-db-workflows.php#L379 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/email-subscribers/tags/5.9.15/lite/includes/workflows/db/class-es-db-workflows.php#L379 gist.github.com: https://gist.github.com/stevenyu113228/6c5c3f660e6dc739768842c051028f40 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/changeset/3464881/

Credits

Chiao-Lin Yu