CVE-2021-24591 - Vulnerability Details - OpenCVE

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

Published: 2021-09-06

Score: 5.4 Medium

EPSS: < 1% Very Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

Unknown

Highlight

affected

Version	Status	Constraints
`0.9.3`	affected	< 0.9.3

Configuration 1 [-]

cpe:2.3:a:dna88:highlight:*:*:*:*:*:wordpress:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

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Advisories

Source	ID	Title
EUVD	EUVD-2021-11503	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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact Low

Integrity Impact Low

Availability Impact None

User Interaction Required

No CVSS v3.0

Access Vector Network

Access Complexity Medium

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact None

This CVE is not in the KEV list.

The EPSS score is 0.00624.

Key SSVC decision points have not yet been added.

References

Link	Providers
https://wpscan.com/vulnerability/c5cbe3b4-2829-4fd2-8194-4b3a2ae0e257

History

No history.

Subscriptions

Dna88 Highlight

MITRE

Status: PUBLISHED

Assigner: WPScan

Published: 2021-09-06T11:09:30.000Z

Updated: 2024-08-03T19:35:20.273Z

Reserved: 2021-01-14T00:00:00.000Z

Link: CVE-2021-24591

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-09-06T11:15:08.467

Modified: 2026-06-17T03:40:17.493

Link: CVE-2021-24591

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-79
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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