SCA: security update for egroupware/egroupware (GHSA-8737-2x9g-xjj7)

high Tenable Self-Hosted Container Security Plugin ID 444474

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

- In egroupware version 26.0 and earlier, an authenticated administrator can achieve OS-level Remote Code
Execution (RCE) by uploading a malicious eTemplate XML file (`.xet`) to the VFS `/etemplates` mount. The
`Widget::expand_name()` method passes template widget attribute values directly into a PHP `eval()` call
with only double-quote escaping applied - **backtick characters are not escaped**. In PHP, backticks
inside a double-quoted `eval()` string execute shell commands. This allows an admin-level user to escalate
from web application access to arbitrary OS command execution on the server. (CVE-2026-40187)

Solution

Update the egroupware/egroupware library and its related packages to version 23.1.20260601 or later.

See Also

https://github.com/advisories/GHSA-8737-2x9g-xjj7

Plugin Details

Severity: High

ID: 444474

Version: Revision 1.3

Type: Local

Family: SCA Checks

Published: 7/7/2026

Updated: 7/21/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.06

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS Score Source: CVE-2026-40187

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: High

Base Score: 8.6

Threat Score: 6.1

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 7/7/2026

Vulnerability Publication Date: 7/7/2026

Reference Information

CVE: CVE-2026-40187