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CVE-2026-22243

Egroupware SQL injection

8.8 HIGHPublic exploitEPSS 0.42%
  1. Published28 Jan 2026

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.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Egroupware≥ 26.0.20251208 < 26.0.20260113 · < 23.1.20260113

Remediation

Fixed in
Egroupware≥ 26.0.20260113

References

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Frequently asked

Is CVE-2026-22243 being actively exploited?

CVE-2026-22243 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.42%.

How severe is CVE-2026-22243?

CVE-2026-22243 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 0.42% probability of exploitation.

Which products are affected by CVE-2026-22243?

Affected products include Egroupware.

How do I fix CVE-2026-22243?

Upgrade affected software to a fixed version, for example Egroupware 26.0.20260113 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-22243 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.