CVE-2021-24153

Yoast SEO <= 3.4.0 - Authenticated Stored Cross-Site Scripting

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

5.4

CVSS Score

5.4

CVSS Score

medium

Severity

3.4.1

Patched in

2730d

Time to patch

Description

A Stored Cross-Site Scripting vulnerability was discovered in the Yoast SEO WordPress plugin before 3.4.1, which had built-in blacklist filters which were blacklisting parentheses as well as several functions such as alert, but bypasses were found.

CVSS Vector Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Low

Confidentiality

Low

Integrity

None

Availability

Technical Details

Affected versions<3.4.1

PublishedAugust 2, 2016

Last updatedJanuary 22, 2024

Affected pluginwordpress-seo

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/0cde6b5b-f760-467b-940f-06a1f983ddc4?source=api-prod

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