What’s Vulnerable › Vulnerabilities

CVE-2023-28731: Unauthenticated RCE affecting the AcyMailing plugin for Joomla

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-03-30 · updated 2026-06-17
• Weakness: CWE-20

Description

AnyMailing Joomla Plugin is vulnerable to unauthenticated remote code execution, when being granted access to the campaign's creation on front-office due to unrestricted file upload allowing PHP code to be injected. This issue affects AnyMailing Joomla Plugin Enterprise in versions below 8.3.0.

Affected products

• acyba AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress: before 8.3.0 — fixed in 8.3.0

How to fix

Upgrade to a fixed version: acyba AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress 8.3.0. Check the vendor advisory for mitigations.

References

• https://www.acymailing.com/change-log/
• https://www.bugbounty.ch/advisories/CVE-2023-28731
• https://www.acymailing.com/change-log/
• https://www.bugbounty.ch/advisories/CVE-2023-28731

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