JooDatabase (com_joodb) below 5.1 - Unauthenticated SQL Injection

JooDatabase versions before 5.1 pass the front-end cid request parameter straight into a SQL WHERE clause without escaping it. The catalog view reads cid from the request and interpolates each value raw, so an anonymous visitor needs no account, no token and no user interaction to inject arbitrary SQL and read anything the site database holds, including the Joomla user table and its password hashes. CVSS 9.3 Critical (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H), CWE-89. Found by Krzysztof Zajac of CERT PL. Joomla 4, 5 and 6: update to JooDatabase 5.1, released 3 September 2026. The vendor update stream does serve this release to Joomla 4, 5 and 6, so it appears in the normal Update your extensions screen. It can also be installed by hand from https://joodb.feenders.de/index.php/download. Joomla 3 has no fix, and the Joomla backend will not tell those site owners that. The vendor Joomla 3 branch is still com_joodb-3x.zip version 3.2 from May 2022, and its models/catalog.php contains the same unescaped cid interpolation, so it is vulnerable too. The vendor update stream offers Joomla 3 sites only a 3.2.0 block, which is lower than most builds people actually run, so a Joomla 3 site sitting on 3.2.1, 3.6.1, 3.9.x or 3.13 is offered nothing at all and reads as up to date forever, while a site on 3.2 or older is offered an update that still contains the bug. Either way the backend is not a reliable signal here. Those sites are stranded rather than behind: the real remediation is migrating to Joomla 4 or later and installing JooDatabase 5.1. Until then, unpublish or uninstall the component, or block the front-end catalog view at the web server or WAF. Note on the CVE wording: the record names the product JooDatabase Lite, but the vendor stopped shipping separate Lite and Pro editions at the start of 2022 and everything since is a single free release, so this applies to any JooDatabase install in range. The CVE structured version list also states 1.0-5.0.0 while its own title and description say below 5.1.0. The vendor release and the shipped code resolve that in favour of below 5.1: the 5.1 zip served by the update stream carries the db->quote fix, and the 5.0.2 build that preceded it still has the raw interpolation, so 5.0.1 and 5.0.2 are vulnerable.

Affected versions: < 5.1.0

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.

How CVE-2026-78080 is scored

The base metrics as Joomla CNA published them, and what each one means for a site running an affected version. Threat and environmental metrics are left out: they describe a moment or a particular install rather than the flaw.

Affected extensions and versions