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Vulnerability · Published Apr 13, 2026 · Assigned by VulDB

CVE-2025-156321Panel-dev MaxKB MdPreview chat.ts cross site scripting

Low 3.5

In plain English

A low-severity cross-site scripting in MaxKB from 1Panel-dev. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 19% of all known vulnerabilities).

Severity (CVSS 3.1)3.5Low
Exploit odds (30 days)0.3%top 81.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in 1Panel-dev MaxKB up to 2.4.2. Impacted is an unknown function of the file ui/src/chat.ts of the component MdPreview. Such manipulation leads to cross site scripting. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 2.5.0 is recommended to address this issue. The name of the patch is 7230daa5ec3e6574b6ede83dd48a4fbc0e70b8d8. 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.

Affected products (as reported)

VendorProductVersions
1Panel-dev MaxKB 2.4.02.4.12.4.2

Weakness: CWE-79, CWE-94 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C

References