CVE-2021-3694 Information

Description

LedgerSMB does not sufficiently HTML-encode error messages sent to the browser. By sending a specially crafted URL to an authenticated user this flaw can be abused for remote code execution and information disclosure.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Reference

https://huntr.dev/bounties/ef7f4cf7-3a81-4516-b261-f5b6ac21430c https://ledgersmb.org/cve-2021-3694-cross-site-scripting https://github.com/ledgersmb/ledgersmb/commit/98fa476d46a4a7e5e9492ed69b4fa190be5547fc https://www.debian.org/security/2021/dsa-4962

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

CHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.6