Affected versions: ≥ 4.0.8 and < 4.0.12
Full advisory: www.icagenda.com
CVE-2026-67366MediumCVSS 5.3
iCagenda (com_icagenda) 4.0.8 to 4.0.11 - Unauthenticated SQL Injection
iCagenda 4.0.8 through 4.0.11 (the Joomla 4/5/6 branch) contain an unauthenticated SQL injection in mod_icagenda_calendar, reachable through com_ajax with no session, token or account (CVE-2026-67365, CVSS 4.0 9.2 Critical). An anonymous visitor can read arbitrary database contents including Joomla user password hashes. This is a separate flaw from the earlier CVE-2026-48939 file upload RCE and was reported by Joep van Antwerpen of Onvio. Fixed in 4.0.12; update to 4.0.13 or later, which also fixes a stored XSS regression introduced in 4.0.8. The legacy Joomla 3 branch (3.9.x) is not affected by this SQL injection.
Affected versions: ≥ 4.0.8 and < 4.0.12
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-2026-67366 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.
5.3 Medium
CVSS 4.0, scored by Joomla CNACVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:NHow it is reached
- AV:N Attack vector
- Network. Reachable across the internet
- AC:L Attack complexity
- Low. Nothing to work around, it just works
- AT:N Attack requirements
- None. Works against any affected install
- PR:N Privileges required
- None. No account needed
- UI:P User interaction
- Passive. Someone has to visit a page
What it does to the site
- VC:N Confidentiality
- None. Nothing can be read
- VI:L Integrity
- Low. Some data can be altered
- VA:N Availability
- None. The site stays up
What it does beyond the site
- SC:N Confidentiality
- None. Other systems keep their data
- SI:N Integrity
- None. Other systems keep their integrity
- SA:N Availability
- None. Other systems stay up
Affected extensions and versions
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Rules current as of 27 September 2026.