Skip to main content
CVE-2026-23525VulnerabilityPublished Updated

CVE-2026-23525: 1Panel · Cross-site Scripting

Affects 1PanelSource CVE Database V5

0

Not known to be exploited · CVSS 6.4 Medium : upgrade to 2.0.17 or 1.10.34 when convenient.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
6.4Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 30% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.0.17, 1.10.34
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Jan 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.

What to do

Upgrade 1Panel to 2.0.17 or 1.10.34; 1panel-dev/1Panel to 1.10.34.

Affected software

ProductAffectedFixed in
1Panel-dev1PanelAffected
  • <1.10.34
  • >=2.0.0 <2.0.17
Fixed in
  • 2.0.17
  • 1.10.34
GitHub1panel-dev/1Panelpkg:github/1panel-dev/1PanelOther threatsAffected
  • <1.10.34
Fixed in
  • 1.10.34

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

European organizations should immediately upgrade 1Panel installations to versions v1.10.34-lts or v2.0.17 or later, which include patches addressing the XSS vulnerability. If you cannot patch yet, restrict publishing privileges to trusted administrators only to reduce the risk of malicious application uploads. Implement Content Security Policy (CSP) headers to limit the execution of unauthorized scripts in browsers accessing the 1Panel interface. Conduct regular audits of applications published in the 1Panel App Store to detect any suspicious or unauthorized content. Employ web application firewalls (WAFs) with XSS detection capabilities to monitor and block malicious payloads targeting the vulnerable components. Educate users on the risks of interacting with untrusted content within the control panel interface. Finally, monitor logs for unusual activity that may indicate exploitation attempts and maintain an incident response plan tailored to web application vulnerabilities.

Description

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.

References

Community reviews

Loading reviews…