CVE-2021-24591

Highlight < 0.9.3 - Authenticated (Admin+) Stored Cross-Site Scripting

mediumImproper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

5.5

CVSS Score

5.5

CVSS Score

medium

Severity

0.9.3

Patched in

900d

Time to patch

Description

The Highlight WordPress plugin before 0.9.3 does not sanitise its CustomCSS setting, allowing high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed.

CVSS Vector Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Changed

Low

Confidentiality

Low

Integrity

None

Availability

Technical Details

Affected versions<0.9.3

PublishedAugust 6, 2021

Last updatedJanuary 22, 2024

Affected pluginhighlight

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/436cd742-c271-4eb7-96a3-cd6af046d26f?source=api-prod

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