CVE-2026-6107 | 1Panel-dev MaxKB up to 2.6.1 ChatHeadersMiddleware chat_headers_middleware.py Name cross site scripting

VDB-356966 · CVE-2026-6107 · SUBMIT #356966 1PANEL-DEV MAXKB UP TO 2.6.1 CHATHEADERSMIDDLEWARE CHAT_HEADERS_MIDDLEWARE.PY NAME CROSS SITE SCRIPTING HISTORYDIFFRELATEJSONXMLCTI Summaryinfo A vulnerability categorized as problematic has been discovered in 1Panel-dev MaxKB up to 2.6.1. Impacted is an unknown function of the file apps/common/middleware/chat_headers_middleware.py of the component ChatHeadersMiddleware. Such manipulation of the argument Name leads to cross site scripting. This vulnerability is documented as CVE-2026-6107. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product. Detailsinfo A vulnerability was found in 1Panel-dev MaxKB up to 2.6.1. It has been rated as problematic. Affected by this issue is an unknown functionality of the file apps/common/middleware/chat_headers_middleware.py of the component ChatHeadersMiddleware. The manipulation of the argument name with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity. The advisory is available at github.com. This vulnerability is handled as CVE-2026-6107. The exploitation is known to be easy. The attack may be launched remotely. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1059.007 by the MITRE ATT&CK project. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product. Upgrading to version 2.8.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 026a2d623e2aa5efa67c4834651e79d5d7cab1da 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. Productinfo Vendor 1Panel-dev Name MaxKB Version 2.6.0 2.6.1 License open-source Website Product: https://github.com/1Panel-dev/MaxKB/ CPE 2.3info 🔒 🔒 CPE 2.2info 🔒 🔒 CVSSv4info VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv3info VulDB Meta Base Score: 3.5 VulDB Meta Temp Score: 3.4 VulDB Base Score: 3.5 VulDB Temp Score: 3.4 VulDB Vector: 🔒 VulDB Reliability: 🔍 CVSSv2info Vector Complexity Authentication Confidentiality Integrity Availability Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock Unlock VulDB Base Score: 🔒 VulDB Temp Score: 🔒 VulDB Reliability: 🔍 Exploitinginfo Class: Cross site scripting CWE: CWE-79 / CWE-94 / CWE-74 CAPEC: 🔒 ATT&CK: 🔒 Physical: No Local: No Remote: Yes Availability: 🔒 Status: Not defined Price Prediction: 🔍 Current Price Estimation: 🔒 0-Day Unlock Unlock Unlock Unlock Today Unlock Unlock Unlock Unlock Threat Intelligenceinfo Interest: 🔍 Active Actors: 🔍 Active APT Groups: 🔍 Countermeasuresinfo Recommended: Upgrade Status: 🔍 0-Day Time: 🔒 Upgrade: MaxKB 2.8.0 Patch: 026a2d623e2aa5efa67c4834651e79d5d7cab1da Timelineinfo 04/11/2026 Advisory disclosed 04/11/2026 +0 days VulDB entry created 04/11/2026 +0 days VulDB entry last update Sourcesinfo Product: github.com Advisory: github.com Status: Confirmed Confirmation: 🔒 CVE: CVE-2026-6107 (🔒) GCVE (CVE): GCVE-0-2026-6107 GCVE (VulDB): GCVE-100-356966 Entryinfo Created: 04/11/2026 09:40 Changes: 04/11/2026 09:40 (60) Complete: 🔍 Submitter: Ana10gy Cache ID: 99:F70:101 Submitinfo Accepted Submit #782263: 1Panel-dev MaxKB <= v2.6.1 Stored XSS (by Ana10gy) Discussion No comments yet. Languages: en. Please log in to comment. ◂ PreviousOverviewNext ▸