Skip to main content
mySites.guru
Free Audit
New features added last monthRelease RadarFile ManagerImpostor FilesUpdate QueueRogue AdminsMCP & APIJoomla VELCVE Index

AcyMailing security vulnerabilities

mySites.guru tracks 2 vulnerabilities in AcyMailing (com_acym), covering 8 CVEs. Every connected Joomla site is checked against them on each audit.

Is my site affected?

Your site is affected if it runs AcyMailing in any of these ranges:

  • before 11.1.0
  • from 6.0.0 up to but not including 10.11.1
Latest safe version
11.1.0 or later. No rule we check matches that release or any newer one.
What to do
Update AcyMailing to 11.1.0 or later from the vendor, then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
Check whether your sites are affected

Every AcyMailing vulnerability we track

Newest first. CVSS is the score published in each CVE record, where it has one; the severity column is the rating our check uses.

CVEAffected versionsFixed inSeverityAdded
CVE-2026-94132CVSS 9.5CVE-2026-94131CVSS 8.3before 11.1.011.1.0Critical2026-09-24
CVE-2026-56292CVSS 9.2CVE-2023-39970CVE-2023-39971CVE-2023-39972CVE-2023-39973CVE-2023-39974from 6.0.0 up to but not including 10.11.110.11.1Critical2026-07-09

What we check for

CriticalCVE-2026-94132CVE-2026-941312026-09-24

AcyMailing (com_acym) below 11.1.0 - Unauthenticated File Upload (mailbox actions, POP3 mode) and File Deletion (custom file fields) (CVE-2026-94132, CVE-2026-94131)

AcyMailing 11.1.0 (24 Sep 2026) fixes two security issues that affect the Enterprise edition; Starter installs contain the same code but cannot reach either feature. 1) CVE-2026-94132 (CVSS 4.0 9.5 Critical): mailbox actions and bounce handling using the POP3 (non-IMAP, "pear") connection method saved MIME parts from an incoming email to media/com_acym/upload/ without checking their extension against the allowed-files list, so anyone able to email the monitored mailbox could write a file of any type, including PHP, into the web root (remote code execution). 2) CVE-2026-94131 (CVSS 4.0 8.3 High): before 11.1.0 a subscriber could post a plain string as the value of a file-type custom field instead of uploading a file, and clearing that field later deleted the stored path without checking it stayed inside the upload folder, allowing path traversal to arbitrary file deletion (for example configuration.php). Both CVEs were published by the Joomla CNA on 26 Sep 2026. Update to 11.1.0 or later. Temporary mitigation: remove file-type custom fields from public forms and switch the mailbox connection method to IMAP.

Affected versions: < 11.1.0

Full advisory: www.acymailing.com · our disclosure post

CriticalCVE-2026-56292CVE-2023-39970CVE-2023-39971CVE-2023-39972CVE-2023-39973CVE-2023-399742026-07-09

AcyMailing (com_acym) below 10.11.1 - Unauthenticated SQL Injection (CVE-2026-56292)

CVE-2026-56292. AcyMailing for Joomla is affected by an unauthenticated SQL injection in a public front-end endpoint. Request parameters were placed into the column list of a SELECT query without sanitising or quoting them (Joomla's text filter strips HTML but does not neutralise SQL syntax), letting an anonymous visitor read data from any table in the site database, including Joomla user accounts and password hashes. No login, account or CSRF token is required. Discovered and responsibly reported to Acyba by mySites.guru (Phil Taylor); fixed in AcyMailing 10.11.1 (released 9 July 2026). A web application firewall that filters SQL (Cloudflare managed rules, Admin Tools, RSFirewall) blocks the payload as mitigation, but the only reliable fix is to update. Update every affected site to 10.11.1 or later. Also covered by this rule: CVE-2023-39970 (unrestricted file upload, RCE), CVE-2023-39971 (XSS), CVE-2023-39972 (unauthorised mailing list creation), CVE-2023-39973 (unauthorised removal of campaign attachments) and CVE-2023-39974 (subscriber count disclosure), all affecting AcyMailing 6.7.0 to 8.6.3. Also within this rule: CVE-2023-28731, CVE-2023-28732 and CVE-2023-28733 (AnyMailing/AcyMailing Joomla plugin below 8.3.0 - unauthenticated RCE via unrestricted upload, missing access control and path traversal on the front-office campaign builder). All three sit inside the 6.0.0 to below-10.11.1 range and need no separate row.

Affected versions: ≥ 6.0.0 and < 10.11.1

Full advisory: our disclosure post

Timeline

  1. 17 August 2023CVE-2023-39970 record published
  2. 17 August 2023CVE-2023-39971 record published
  3. 17 August 2023CVE-2023-39972 record published
  4. 17 August 2023CVE-2023-39973 record published
  5. 17 August 2023CVE-2023-39974 record published
  6. 9 July 2026Check added for CVE-2026-56292, CVE-2023-39970, CVE-2023-39971, CVE-2023-39972, CVE-2023-39973 and CVE-2023-39974 (from 6.0.0 up to but not including 10.11.1)
  7. 9 July 2026CVE-2026-56292 record published
  8. 24 September 2026Check added for CVE-2026-94132 and CVE-2026-94131 (before 11.1.0)
  9. 24 September 2026We published: AcyMailing 11.1.0 Fixes Two Security Flaws
  10. 26 September 2026CVE-2026-94132 record published
  11. 26 September 2026CVE-2026-94131 record published
  12. 30 September 2026We published: AcyMailing Shoots Itself in the Foot With a Vanishing Update Site

What we have written about AcyMailing

AcyMailing Shoots Itself in the Foot With a Vanishing Update Site

AcyMailing Shoots Itself in the Foot With a Vanishing Update Site

Up to 11.1.0, AcyMailing added its Joomla update site from PHP, so Rebuild deleted it and Joomla called vulnerable sites up to date. 11.1.1 fixes it.

AcyMailing 11.1.0 Fixes Two Security Flaws

AcyMailing 11.1.0 Fixes Two Security Flaws

AcyMailing 11.1.0 fixes a mailbox file write and a file deletion flaw, now CVE-2026-94132 (9.5 Critical) and CVE-2026-94131, both filed under Bug fixes.

References

Each CVE page above links its official cve.org record and its NVD entry.

AcyMailing vulnerability questions

Which versions of AcyMailing are vulnerable?
mySites.guru tracks 2 vulnerabilities in AcyMailing (com_acym). A site is affected if its installed version is in any of these ranges: before 11.1.0; from 6.0.0 up to but not including 10.11.1.
What is the latest safe version of AcyMailing?
11.1.0. Every vulnerability tracked here is fixed by 11.1.0, and no rule we check matches that release or any later one.
How do I check which version of AcyMailing my Joomla site runs?
The installed version is listed on the Joomla administrator's Extensions: Manage screen; search it for com_acym. mySites.guru reads the installed version on every audit of a connected site and checks it against these rules.

Running AcyMailing on a site you manage?

A free audit tells you which of your Joomla and WordPress sites run an affected version, which are out of date, and which have not been backed up. No card required. If a site is already compromised, fix.mysites.guru is a single fixed fee per incident, usually resolved the same day.

This check is part of the mySites.guru Joomla vulnerability scanner, which reads every installed extension's version on each audit. Browse the rest of the Joomla vulnerability database.

CVE identifiers: CVE-2026-94132, CVE-2026-94131, CVE-2026-56292, CVE-2023-39970, CVE-2023-39971, CVE-2023-39972, CVE-2023-39973, CVE-2023-39974. Rules current as of 14 October 2026.