Skip to main content
mySites.guru
Free Audit
J!Awards 2026mySites.guru won a new 2026 award at the Joomla World ConferenceOur awards
CVE-2026-67366MediumCVSS 5.3CVE published 14 August 2026

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.

Is my site affected?

Affected
iCagenda from 4.0.8 up to but not including 4.0.12
Fixed in
4.0.12
What to do
Update iCagenda to 4.0.12 or later.
Check whether your sites are affected

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 CNA
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

How 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

Timeline

  1. 14 August 2026CVE-2026-67366 record published by its CNA

Rule details

Other vulnerabilities in iCagenda

Updating for CVE-2026-67366 alone can leave a site on a release another rule still matches. These are the other flaws we check for in the same extension.

iCagenda

Latest safe version: 4.0.12

References

CVE-2026-67366 questions

Which versions are affected by CVE-2026-67366?
CVE-2026-67366 affects iCagenda from 4.0.8 up to but not including 4.0.12. The fix is in 4.0.12.
How do I fix CVE-2026-67366?
Update iCagenda to 4.0.12 or later. Then confirm the installed version on the Joomla administrator's Extensions: Manage screen.
How severe is CVE-2026-67366?
Joomla CNA scores it 5.3 (Medium) under CVSS 4.0. In plain terms: reachable across the internet, no account needed and someone has to visit a page.

Running an affected version 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.

Rules current as of 17 October 2026.