Craft CMS up to 4.10.0/5.5.1 History Message cross site scripting

Summaryinfo

A vulnerability identified as problematic has been detected in Craft CMS up to 4.10.0/5.5.1. This affects an unknown function of the component History Message Handler. This manipulation causes cross site scripting. This vulnerability appears as CVE-2026-25483. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in Craft CMS up to 4.10.0/5.5.1. Affected by this vulnerability is some unknown functionality of the component History Message Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. The summary by CVE is:

Craft Commerce is an ecommerce platform for Craft CMS. In versions from 4.0.0-RC1 to 4.10.0 and from 5.0.0 to 5.5.1, a stored XSS vulnerability exists in Craft Commerce’s Order Status History Message. The message is rendered using the |md filter, which permits raw HTML, enabling malicious script execution. If a user has database backup utility permissions (which do not require an elevated session), an attacker can exfiltrate the entire database, including all user credentials, customer PII, order history, and 2FA recovery codes. This issue has been patched in versions 4.10.1 and 5.5.2.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-25483 since 02/02/2026. The exploitation appears to be easy. The attack can be launched remotely. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

Upgrading to version 4.10.1 or 5.5.2 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 4665a47c0961aee311a42af2ff94a7c470f0ad8c is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-6105). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Content Management System

Vendor

• Craft

Name

• CMS

Version

• 4.0
• 4.1
• 4.2
• 4.3
• 4.4
• 4.5
• 4.6
• 4.7
• 4.8
• 4.9
• 4.10.0
• 5.5.0
• 5.5.1

License

• free

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

Discussion