Platform
php
Component
1panel-dev-maxkb
Fixed in
2.6.1
2.8.0
CVE-2026-6107 is a cross-site scripting (XSS) vulnerability discovered in 1Panel-dev MaxKB versions 2.6.0 to 2.8.0. This flaw stems from improper handling of the 'Name' argument within the chatheadersmiddleware.py file, enabling remote attackers to inject malicious scripts. The vulnerability is rated as LOW severity and can be resolved by upgrading to version 2.8.0.
Successful exploitation of CVE-2026-6107 allows an attacker to inject arbitrary JavaScript code into the 1Panel-dev MaxKB application. This could lead to session hijacking, defacement of the web interface, or redirection to malicious websites. The attacker could potentially steal sensitive user data, including credentials, or compromise the underlying server if the application has elevated privileges. While the CVSS score is LOW, the potential for user interaction and the ease of exploitation make this a concerning vulnerability, especially in environments with a large user base.
CVE-2026-6107 was disclosed on 2026-04-12. The vendor responded promptly and released a patch. There are currently no publicly available proof-of-concept exploits, but the ease of exploitation suggests that it could become a target for opportunistic attackers. The vulnerability is not currently listed on the CISA KEV catalog.
Exploit Status
EPSS
0.03% (10% percentile)
CISA SSVC
CVSS Vector
The primary mitigation for CVE-2026-6107 is to upgrade 1Panel-dev MaxKB to version 2.8.0, which includes the necessary patch (026a2d623e2aa5efa67c4834651e79d5d7cab1da). If an immediate upgrade is not feasible, consider implementing input validation and sanitization on the 'Name' parameter to prevent malicious code injection. Web application firewalls (WAFs) configured to detect and block XSS payloads can also provide a temporary layer of protection. After upgrade, confirm the vulnerability is resolved by attempting to inject a simple XSS payload into the affected parameter and verifying that it is properly sanitized.
Update MaxKB to version 2.8.0 or higher to mitigate the Cross-Site Scripting (XSS) vulnerability. The update corrects the manipulation of the 'Name' argument in the chat_headers_middleware.py file, preventing the execution of malicious code.
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CVE-2026-6107 is a cross-site scripting (XSS) vulnerability affecting 1Panel-dev MaxKB versions 2.6.0 through 2.8.0, allowing attackers to inject malicious scripts.
You are affected if you are using 1Panel-dev MaxKB versions 2.6.0, 2.7.0, or 2.8.0 and have not upgraded to version 2.8.0.
Upgrade 1Panel-dev MaxKB to version 2.8.0. This version includes a patch that resolves the XSS vulnerability.
While there are no confirmed active exploits, the ease of exploitation suggests it could become a target. Monitor your systems for suspicious activity.
Refer to the 1Panel-dev MaxKB release notes and security advisories for details on the patch and vulnerability mitigation.
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