CVE-2023-33187

What it is

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.

At a glance

Exploitability

Can be exploited over the network with an admin-level account, but needs a user to act. High risk of data exposure.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2023-05-26 21:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 06:01 UTC Last updatedMost recent change to the record

Why it ranks here

• Exploited in the wild: no, CISA does not list it.
• Exploit odds: 0.3% in the next 30 days (EPSS).
• Severity: 5.4 MEDIUM (CVSS).
• Fix: a patch or advisory is linked.

Details

Published

2023-05-26 21:15 UTC

Last modified

2026-06-17 06:01 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-319 · Cleartext transmission

Record status

Modified

Affected

• Highlight < 6.0.0

Attack profile CVSS 3.1 · 5.4

Attack vector

Network

Complexity

High

Privileges needed

High

User interaction

Required

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Is it in your code?

Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.

Read https://cve-list.com/agent/cve/CVE-2023-33187.md and follow it. Check whether this project is affected by CVE-2023-33187. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.

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