CVE-2026-22243 EGroupware has SQL Injection in Nextmatch Filter Processing
Authenticated attackers can inject SQL commands via Nextmatch filter processing in EGroupware, allowing unauthorized database access and modification.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-22243?
CVE-2026-22243 is a high-severity SQL injection vulnerability in egroupware, published on 28 Jan 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
EGroupware is a Web based groupware server written in PHP. A SQL Injection vulnerability exists in the core components of EGroupware prior to versions 23.1.20260113 and 26.0.20260113, specifically in the `Nextmatch` filter processing. The flaw allows authenticated attackers to inject arbitrary SQL commands into the `WHERE` clause of database queries. This is achieved by exploiting a PHP type juggling issue where JSON decoding converts numeric strings into integers, bypassing the `is_int()` security check used by the application. Versions 23.1.20260113 and 26.0.20260113 patch the vulnerability.
Weakness: CWE-89
Which versions are affected by CVE-2026-22243?
4 open source packages ship an affected version, including egroupware/egroupware. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
egroupware/egroupware Packagist | All versions | 23.1.20260113 |
egroupware/egroupware Packagist | All versions | 23.1.20260113 |
egroupware/egroupware Packagist | From 26.0.20251208 | 26.0.20260113 |
egroupware/egroupware Packagist | From 26.0.20251208 | 26.0.20260113 |
Products include Egroupware Egroupware.
How do I fix CVE-2026-22243?
Upgrade egroupware/egroupware to a fixed version for your release line: 23.1.20260113 or 26.0.20260113.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2026-22243 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-22243 exists.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in egroupware
Sources
Also known as GHSA-rvxj-7f72-mhrx.