CVE-2026-11592 json
Email Subscribers & Newsletters <= 5.9.27 - Missing Authorization to Authenticated (Contributor+) Settings Modification via ig_es_handle_request AJAX Action
published 2026-07-02 4 mo ago modified 2026-10-28 12 d ago also EUVD-2026-41248
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 42%
- public exploits
- 0
- none known
Summary
The Email Subscribers & Newsletters – Email Marketing, Post Notifications & Newsletter Plugin for WordPress plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 5.9.27. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticated attackers, with contributor-level access and above, to overwrite plugin mail settings (from name and from email address), create audience lists, insert arbitrary contacts into those lists, create and overwrite newsletter broadcasts and post notifications, add workflows, and queue and dispatch mass email to arbitrary recipients.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.49% chance of exploitation in the next 30 days, higher than 42% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N |
Affected products
- icegram Email Subscribers & Newsletters by Icegram Express – Email Marketing, Post Notifications & WooCommerce Marekting Automation for WordPress
Classification
- Weakness
-
- CWE-862 Missing Authorization
- Technology feeds
References
- wordfence.com /threat-intel/vulnerabilities/id/a2e70691-4de9-4b12-babf-bebe267a780b?source=cve
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.24/lite/admin/class-ig-es-onboarding.php#L171
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.24/lite/admin/class-email-subscribers-admin.php#L216
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.24/lite/includes/classes/class-es-newsletters.php#L717
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.24/lite/includes/workflows/admin/class-es-workflow-admin-edit.php#L74
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.24/lite/includes/class-email-subscribers-activator.php#L66
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.21/lite/admin/class-ig-es-onboarding.php#L171
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.21/lite/admin/class-email-subscribers-admin.php#L216
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.21/lite/includes/classes/class-es-newsletters.php#L717
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.21/lite/includes/workflows/admin/class-es-workflow-admin-edit.php#L74
- plugins.trac.wordpress.org /browser/email-subscribers/tags/5.9.21/lite/includes/class-email-subscribers-activator.php#L66
- plugins.trac.wordpress.org /changeset?sfp_email=&sfph_mail=&reponame=&old=3584584%40email-subscribers&new=3584584%40email-subscribers&sfp
- research.cleantalk.org /cve-2026-11592
Sources
- CVE List CVE-2026-11592
- NVD CVE-2026-11592
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.