Copeland XWEB EVO up to 5.8.8 Config /etc/xwebconfig.json action code injection

Summaryinfo

A vulnerability marked as critical has been reported in Copeland XWEB EVO up to 5.8.8. This issue affects some unknown processing of the file /etc/xwebconfig.json of the component Config. The manipulation of the argument action leads to code injection. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is uniquely identified as CVE-2026-124014. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in Copeland XWEB EVO up to 5.8.8. It has been rated as critical. This issue affects an unknown code of the file /etc/xwebconfig.json of the component Config. The manipulation of the argument action with an unknown input leads to a code injection vulnerability. Using CWE to declare the problem leads to CWE-94. The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment. Impacted is integrity, and availability. The summary by CVE is:

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.

The advisory is shared at webapps.copeland.com. The identification of this vulnerability is CVE-2026-124014 since 11/06/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/12/2026). MITRE ATT&CK project uses the attack technique T1059 for this issue.

By approaching the search of inurl:etc/xwebconfig.json it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

• Copeland

Name

• XWEB EVO

Version

• 5.8.0
• 5.8.1
• 5.8.2
• 5.8.3
• 5.8.4
• 5.8.5
• 5.8.6
• 5.8.7
• 5.8.8

Support

• end of life

CPE 2.3info

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CPE 2.2info

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