CVE-2026-27823
Description
A vulnerability has been identified in EGroupware that may lead to Remote Code Execution (RCE). The issue allows an authenticated attacker to execute arbitrary commands on the server. If user self-registration is enabled, the vulnerability may be exploitable without prior authentication. The vulnerability stems from improper authorization checks combined with a file write primitive and an arbitrary file read vulnerability, which together enable full system compromise. This has been patched in versions 26.2.20260224 and 23.1.20260224.
Is your site exposed to CVE-2026-27823?
Run a free security scan — no signup, results in seconds.
Weakness Type (CWE)
References
Frequently Asked Questions
What is CVE-2026-27823? +
How do I check if I'm vulnerable to CVE-2026-27823? +
Related Vulnerabilities
NamelessMC is website software for Minecraft servers. In version 2.2.4, `modules/Forum/pages/forum/get_quotes.php` only checks whether the caller is logged in, then …
Insecure Direct Object References (IDOR) in access control in Customer Portal before 2.1.4 on NightWolf Penetration Testing allows an attacker …
Insecure Direct Object References (IDOR) in access control in Tracking 2.1.4 on NightWolf Penetration Testing allows an attacker to access …
fleetdm/fleet is an open source device management, built on osquery. In vulnerable versions of Fleet, an attacker could craft a …
An Unauthenticated Arbitrary File Read vulnerability affects the Agent when installed on a system. The parameter filename does not validate …
XWiki OIDC has various tools to manipulate OpenID Connect protocol in XWiki. Starting in version 2.17.1 and prior to version …