Icegram Engage <= 3.1.42 - Authenticated (Contributor+) Second-Order SQL Injection via 'messages[][id]' Parameter
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 Icegram Engage – Popups, Optins, CTAs & Lead Generation plugin for WordPress is vulnerable to second-order SQL Injection via 'messages[][id]' Parameter in all versions up to, and including, 3.1.42 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 contributor-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The injection is second-order: the malicious id value is first persisted to post meta via the save_campaign_preview() AJAX action (gated by a nonce check and edit_post capability, requiring Editor-level access or above), and only executed as SQL when a subsequent preview request triggers get_message_data() to interpolate the stored value directly into a SQL IN() clause without $wpdb->prepare() or integer casting.
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
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-16087
- 2026-10-03 Alias added: GHSA-353r-r23c-w3ph
References
Other 6
- https://www.wordfence.com/threat-intel/vulnerabilities/id/1543265e-dbbf-4d48-aaa9-353e2a5c3fe9?source=cve
- https://plugins.trac.wordpress.org/browser/icegram/tags/3.1.42/lite/classes/class-icegram-campaign-admin.php#L1134
- https://plugins.trac.wordpress.org/browser/icegram/tags/3.1.42/lite/class-icegram.php#L1720
- https://plugins.trac.wordpress.org/browser/icegram/tags/3.1.42/lite/class-icegram.php#L1338
- https://plugins.trac.wordpress.org/browser/icegram/tags/3.1.42/lite/class-icegram.php#L1770
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3628434%40icegram&new=3628434%40icegram
More icegram vulnerabilities
- TI-2024-02684 SQL injection in icegram Email Subscribers & Newsletters – Email Marketing, Post… CVSS 3.1CRITICAL 9.8
- TI-2019-14600 There was a flaw in the WordPress plugin, Email Subscribers & Newsletters before 4.3.1… CVSS 3.1CRITICAL 9.8
- TI-2022-03650 Icegram Express < 5.5.1 - Subscriber+ SQLi CVSS 3.1HIGH 8.8
- TI-2026-01336 Email Subscribers & Newsletters <= 5.9.16 - Authenticated (Administrator+) SQL Injection via 'workflow_ids' Parameter CVSS 3.1MEDIUM 6.5
- TI-2024-11421 Email Subscribers < 5.7.44 - Admin+ SQL Injection CVSS 3.1MEDIUM 6.5
- TI-2019-14413 The WordPress plugin, Email Subscribers & Newsletters, before 4.2.3 had a flaw that… CVSS 3.1MEDIUM 5.3
Sources
- CVE-2026-16087 · CVE Program
- CVE-2026-16087 · NVD
- FIRST EPSS
- GHSA-353r-r23c-w3ph · 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