What is the CVSS score of CVE-2026-23525?

CVE-2026-23525 has a CVSS 3.1 base score of 6.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.1%.

Which versions of 1panel are affected by CVE-2026-23525?

Organizations using 1Panel should be aware of moderate risk from CVE-2026-23525, a cross-site scripting vulnerability rated CVSS 6.4.

How to fix or mitigate CVE-2026-23525?

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Verify Content-Security-Policy and output encoding.

1panel CVE-2026-23525

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2026-01-18 security-advisories@github.com

XSS Authentication Bypass 1panel Fit2Cloud

6.4

CVSS 3.1 · GitHub Advisory

Severity by source

GitHub Advisory PRIMARY

6.4 MEDIUM

AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

Primary rating from GitHub Advisory · only source for this CVE.

CVSS VectorGitHub Advisory

Attack Vector

Network

Attack Complexity

High

Privileges Required

High

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

CVE Published

Jan 18, 2026 - 23:15 nvd

MEDIUM 6.4

DescriptionGitHub Advisory

1Panel is an open-source, web-based control panel for Linux server management. A stored Cross-Site Scripting (XSS) vulnerability exists in the 1Panel App Store when viewing application details. Malicious scripts can execute in the context of the user’s browser, potentially compromising session data or sensitive system interfaces. All versions of 1Panel up to and including v1.10.33-lts and v2.0.16 are affected. An attacker could publish a malicious application that, when loaded by users (locally or remotely), can execute arbitrary scripts. This may result in theft of user cookies, unauthorized access to system functions, or other actions that compromise the confidentiality, integrity, and availability of the system. The vulnerability is caused by insufficient sanitization of content rendered by the MdEditor component with the previewOnly attribute enabled. Specifically, the App Store renders application README content without proper XSS protection, allowing script execution during content rendering; and similar issues exist in system upgrade-related components, which can be fixed by implementing proper XSS sanitization in the MdEditor component. These vulnerabilities can be mitigated by applying proper XSS protection and sanitization when rendering content in the MdEditor component. Safe versions with a patch incorporated are v1.10.34-lts and v2.0.17.

AnalysisAI

Stored XSS in 1Panel's App Store allows attackers to inject malicious scripts into application details that execute in users' browsers when viewed, potentially enabling session hijacking or unauthorized system access. Versions up to v1.10.33-lts and v2.0.16 are vulnerable, with no patch currently available. An attacker could publish a compromised application to steal credentials, modify system functions, or compromise system availability.

Technical ContextAI

Classified as CWE-79 (Cross-site Scripting (XSS)). 1Panel is an open-source, web-based control panel for Linux server management. A stored Cross-Site Scripting (XSS) vulnerability exists in the 1Panel App Store when viewing application details. Malicious scripts can execute in the context of the user’s browser, potentially compromising session data or sensitive system interfaces. All versions of 1Panel up to and including v1.10.33-lts and v2.0.16 are affected. An attacker could publish a malicious application that, when loaded by users (locally

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.