CVE-2026-124014: Dixell/Copeland XWEB EVO Unauthenticated Configuration Write via config.lua

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 10 Nov 2026.

VulnCheck KEV lists it since 12 Nov 2026. VulnCheck's own honeypots also recorded exploitation attempts.

How likely is exploitation in the next 30 days?

Not yet scored. FIRST's EPSS model has no score for this record as of 12 Nov 2026.

How severe?

8.8 High

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (2)

Which versions are affected?

Affected

• 4.3.0 through 5.8.8

Versions by product

Source: CISA KEV 2026.11.10, as of 10 Nov 2026; VulnCheck KEV, as of 13 Nov 2026; FIRST EPSS, as of 12 Nov 2026; CVE List, as of 13 Nov 2026. About the data.

Description

Dixell/Copeland XWEB EVO Unauthenticated Configuration Write via config.lua

XWEB EVO 4.3.0 through 5.8.8 contains an unauthenticated arbitrary file write vulnerability that allows remote attackers to modify the system configuration file /etc/xwebconfig.json by sending a crafted POST request to config.lua with action=set, which performs no session validation and writes the raw, unvalidated request body. Attackers can tamper with configuration values such as model and plugin fields or trigger a SYSTEM_NOT_CONFIGURED state via the unauthenticated action=get and action=set operations, resulting in configuration tampering and denial of service. This product line reached it's end of service date in March 2026.

Source: CVE List, as of 13 Nov 2026. About the data.

What to do

Advisories and patches

• Software Download (Patch)
• End of Support Announcement (Vendor advisory)

This summary is based on the CVE record as of 13 Nov 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

Source: CVE List, as of 13 Nov 2026. About the data.

Timeline