Joomla Quiz Deluxe
Affected versions: ≤ 3.7.4
Full advisory: nvd.nist.gov
CVE-2017-20257
Joomla Quiz Deluxe (com_joomlaquiz) <= 3.7.4 - Unauthenticated SQL Injection
Joomla Quiz Deluxe 3.7.4 and earlier expose the ajaxaction.flag_question task, which builds a SQL statement from unescaped request input. An unauthenticated attacker can execute arbitrary SQL and read the whole Joomla database, including the user table and its password hashes. No fix was published for this branch. Update to a current Joomla Quiz Deluxe release, or uninstall the component if it is no longer used.
Affected versions: ≤ 3.7.4
Official record: cve.org · NVD
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Affected extensions and versions
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Rules current as of 13 September 2026.