CVE-2023-33187 MEDIUM

CVE-2023-33187: highlight vulnerable to cleartext transmission of sensitive information

Vendor Highlight
Product highlight
Weakness CWE-319 · Cleartext transmission
Published May 26, 2023
Last update January 14, 2025

CVSS base score

5.4/10
Attack vector Network
Attack complexity High
Privileges required High
User interaction Required
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Highlight is an open source, full-stack monitoring platform. Highlight may record passwords on customer deployments when a password html input is switched to `type="text"` via a javascript "Show Password" button. This differs from the expected behavior which always obfuscates `type="password"` inputs. A customer may assume that switching to `type="text"` would also not record this input; hence, they would not add additional `highlight-mask` css-class obfuscation to this part of the DOM, resulting in unintentional recording of a password value when a `Show Password` button is used. This issue was patched in version 6.0.0. This patch tracks changes to the `type` attribute of an input to ensure an input that used to be a `type="password"` continues to be obfuscated.

Key dates

02Disclosure timeline

May 26, 2023 CVE published
January 14, 2025 Record updated