# iCagenda (com_icagenda) 4.0.8 to 4.0.11 - Unauthenticated SQL Injection

[Joomla Vulnerability Database](https://mysites.guru/vulnerabilities/)/CVE-2026-67366

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.

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## 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](https://mysites.guru/free-audit/)

## 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

[CVE-2026-67365](https://mysites.guru/vulnerabilities/CVE-2026-67365/)[CVE-2026-71571](https://mysites.guru/vulnerabilities/CVE-2026-71571/)[CVE-2026-67366](https://mysites.guru/vulnerabilities/CVE-2026-67366/)[CVE-2026-71570](https://mysites.guru/vulnerabilities/CVE-2026-71570/)

[iCagenda](https://mysites.guru/vulnerabilities/icagenda/)

Affected versions: ≥ 4.0.8 and < 4.0.12

Full advisory: [www.icagenda.com](https://www.icagenda.com/docs/changelog/icagenda-4-0-12)

## 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](https://mysites.guru/vulnerabilities/icagenda/)

Latest safe version: 4.0.12

-   [CVE-2026-48939](https://mysites.guru/vulnerabilities/CVE-2026-48939/) Critical, from 4.0.0 up to but not including 4.0.8
-   [CVE-2026-67365](https://mysites.guru/vulnerabilities/CVE-2026-67365/) from 4.0.8 up to but not including 4.0.12
-   [CVE-2026-71571](https://mysites.guru/vulnerabilities/CVE-2026-71571/) from 4.0.8 up to but not including 4.0.12
-   [CVE-2026-71570](https://mysites.guru/vulnerabilities/CVE-2026-71570/) from 4.0.8 up to but not including 4.0.12

## References

-   [CVE-2026-67366 on cve.org (the official CVE record)](https://www.cve.org/CVERecord?id=CVE-2026-67366)
-   [CVE-2026-67366 in the NIST National Vulnerability Database](https://nvd.nist.gov/vuln/detail/CVE-2026-67366)
-   [icagenda.com/docs/changelog/icagenda-4-0-12](https://www.icagenda.com/docs/changelog/icagenda-4-0-12)

## CVE-2026-67366 questions

Show all

Which versions are affected by CVE-2026-67366?

[CVE-2026-67366](https://mysites.guru/vulnerabilities/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](https://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](https://mysites.guru/joomla-vulnerability-scanner/), which reads every installed extension's version on each audit. Browse the rest of the [Joomla vulnerability database](https://mysites.guru/vulnerabilities/).

Rules current as of 14 October 2026.