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Vulnerability record · CVE-2023-28731 · published 30 March 2023

CVE-2023-28731: Acymailing improper input validation vulnerability

Acymailing · Acymailing

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.

9.8 CVSS 3.1 Critical EPSS 1.8% · top 22.6% CWE-20 · Improper input validationCWE-434 · Unrestricted file upload
9.8CVSS 3.1 base score
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.acymailing.com/change-log/ Release Notes
https://www.bugbounty.ch/advisories/CVE-2023-28731 ExploitThird Party Advisory
https://www.acymailing.com/change-log/ Release Notes
https://www.bugbounty.ch/advisories/CVE-2023-28731 ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.2CVE-2026-56292Acymailing sql injection vulnerabilityJoomla Extension - acymailing.com - SQL Injection in AcyMailing extension < 10.11.1 - A SQLi vulnerability in AcyMailing component < 10.11.1 for Joom…EPSS 1.4%8.8CVE-2024-7384Acymailing unrestricted file upload vulnerabilityThe AcyMailing – An Ultimate Newsletter Plugin and Marketing Automation Solution for WordPress plugin for WordPress is vulnerable to arbitrary file u…EPSS 0.96%7.5CVE-2023-28732Acymailing improper input validation vulnerabilityMissing access control in AnyMailing Joomla Plugin allows to list and access files containing sensitive information from the plugin itself and access…EPSS 0.63%6.1CVE-2023-41867Acymailing cross-site scripting vulnerabilityUnauth. Reflected Cross-Site Scripting (XSS) vulnerability in AcyMailing Newsletter Team AcyMailing plugin <= 8.6.2 versions.EPSS 0.38%6.1CVE-2023-39971Acymailing cross-site scripting vulnerabilityImproper Neutralization of Input During Web Page Generation vulnerability in AcyMailing Enterprise component for Joomla allows XSS. This issue affect…EPSS 0.40%6.1CVE-2023-28733Acymailing improper input validation vulnerabilityAnyMailing Joomla Plugin is vulnerable to stored cross site scripting (XSS) in templates and emails of AcyMailing, exploitable without authentication…EPSS 0.37%6.1CVE-2021-24288Acymailing open redirect vulnerabilityWhen subscribing using AcyMailing, the 'redirect' parameter isn't properly sanitized. Turning the request from POST to GET, an attacker can craft a l…EPSS 1.9%5.3CVE-2023-39974Acymailing information exposure vulnerabilityExposure of Sensitive Information vulnerability in AcyMailing Enterprise component for Joomla. It allows unauthorized actors to get the number of sub…EPSS 0.51%

Source: NIST National Vulnerability Database (record CVE-2023-28731), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.