CVE Feed

    Dashboard / CVE / CVE-2026-27823

    CVE-2026-27823

    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.

    Published:Jul 20, 2026
    Last Modified:Jul 21, 2026
    EPS:Jul 20, 2026
    EPSS Score:0.00976
    CVSS Score:8.7

    Affected Products

    Vendor
    Egroupware
    Product
    Egroupware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-285 Improper Authorization

    Related CVEs

    CVE-2026-40187 (CVSS 8.6) — In egroupware version 26.0 and earlier, an authenticated administrator can achieve OS-level Remote Code Execut…
    CVE-2026-22243 (CVSS 8.7) — EGroupware is a Web based groupware server written in PHP. A SQL Injection vulnerability exists in the core co…
    CVE-2023-38327 (CVSS 5.3) — An issue was discovered in eGroupWare 17.1.20190111. A User Enumeration vulnerability exists under calendar/fr…
    CVE-2023-38329 (CVSS 6.1) — An issue was discovered in eGroupWare 17.1.20190111. A cross-site scripting Reflected (XSS) vulnerability exis…
    CVE-2024-40614 (CVSS 9.8) — EGroupware before 23.1.20240624 mishandles an ORDER BY clause. This leads to json.php?menuaction=EGroupware\Ap…
    CVE-2023-38328 (CVSS 4.9) — An issue was discovered in eGroupWare 17.1.20190111. An Improper Password Storage vulnerability affects the se…
    CVE-2017-14920 (CVSS 6.1) — Stored XSS vulnerability in eGroupware Community Edition before 16.1.20170922 allows an unauthenticated remote…
    CVE-2014-2027 (CVSS 7.5) — eGroupware before 1.8.006.20140217 allows remote attackers to conduct PHP object injection attacks, delete arb…
    CVE-2014-2988 (CVSS 8.5) — EGroupware Enterprise Line (EPL) before 1.1.20140505, EGroupware Community Edition before 1.8.007.20140506, an…
    CVE-2014-2987 (CVSS 6.8) — Multiple cross-site request forgery (CSRF) vulnerabilities in EGroupware Enterprise Line (EPL) before 1.1.2014…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High