AcyMailing 9.11.0 - 10.8.1 - Missing Authorization to Authenticated (Subscriber+) Privilege Escalation
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
The AcyMailing plugin for WordPress is vulnerable to privilege escalation in all versions From 9.11.0 up to, and including, 10.8.1 due to a missing capability check on the `wp_ajax_acymailing_router` AJAX handler. This makes it possible for authenticated attackers, with Subscriber-level access and above, to access admin-only controllers (including configuration management), enable the autologin feature, create a malicious newsletter subscriber with an injected `cms_id` pointing to any WordPress user, and then use the autologin URL to authenticate as that user, including administrators.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| acyba | AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress | 9.11.0 – 10.8.1 | — | No fix listed | CNA |
- AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress Vendoracyba Affected 9.11.0 – 10.8.1 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2026-3614
- 2026-10-03 Alias added: GHSA-3phr-p473-vc8q
References
Other 7
- https://www.wordfence.com/threat-intel/vulnerabilities/id/a895e2cf-9eba-4c46-b19f-d008e1058f64?source=cve
- https://plugins.trac.wordpress.org/browser/acymailing/tags/10.7.1/WpInit/Router.php#L11
- https://plugins.trac.wordpress.org/browser/acymailing/trunk/WpInit/Router.php#L11
- https://plugins.trac.wordpress.org/browser/acymailing/tags/10.7.1/WpInit/Router.php#L122
- https://plugins.trac.wordpress.org/browser/acymailing/tags/10.7.1/WpInit/Router.php#L230
- https://plugins.trac.wordpress.org/browser/acymailing/tags/10.7.1/back/Core/AcymController.php#L92
- https://plugins.trac.wordpress.org/browser/acymailing/tags/10.8.1/back/Core/AcymController.php#L99
More acyba vulnerabilities
- TI-2023-20863 Extension - acymailing.com - RCE in AcyMailing component for Joomla 6.7.0-8.5.0 CVSS 3.1CRITICAL 9.8
- TI-2018-06612 CSV Injection (aka Excel Macro Injection or Formula Injection) exists in the export… CVSS 3.0HIGH 8.8
- TI-2018-06611 CSV Injection (aka Excel Macro Injection or Formula Injection) exists in the export… CVSS 3.0HIGH 8.8
- TI-2024-06844 AcyMailing <= 9.7.2 - Authenticated (Subscriber+) Arbitrary File Upload via acym_extractArchive Function CVSS 3.1HIGH 8.8
- TI-2026-54189 Path traversal in acyba AcyMailing – An Ultimate Newsletter Plugin and Marketing… CVSS 3.1HIGH 7.5
- TI-2026-12981 Improper privilege management in acyba AcyMailing – An Ultimate Newsletter Plugin and… CVSS 3.1HIGH 8.8
Sources
- CVE-2026-3614 · CVE Program
- CVE-2026-3614 · NVD
- FIRST EPSS
- GHSA-3phr-p473-vc8q · 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