AcyMailing (com_acym) below 10.11.1 - Unauthenticated SQL Injection

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

Official record: cve.org · NVD

Every connected Joomla site is checked against this rule on each audit, and flagged if it runs an affected version.

Affected extensions and versions

Our disclosure post

Unauthenticated SQL Injection in AcyMailing found by mySites.guru

mySites.guru found and reported CVE-2026-56292, an unauthenticated SQL injection in AcyMailing for Joomla and WordPress. Update to 10.11.1 now.

9 Jul 2026