CVE-2021-34665 - CVE House

Status published Medium CVE-2021-34665

WP SEO Tags <= 2.2.7 Reflected Cross-Site Scripting

6.1 CVSS

Vulnerability Description

The WP SEO Tags WordPress plugin is vulnerable to Reflected Cross-Site Scripting via the saq_txt_the_filter parameter in the ~/wp-seo-tags.php file which allows attackers to inject arbitrary web scripts, in versions up to and including 2.2.7.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

p7e4

References

Affected Vendor

WP SEO Tags

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Affected Software

WP SEO Tags

Vulnerable Versions:

2.2.7

Timeline

Official Publish: August 16th, 2021

Last Modified: May 23rd, 2025

Added to House: July 21st, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weaknesses (CWE)

CWE-79

MITRE ATT&CK TTPs

T1189 Drive-by Compromise

Initial Access

T1059.007 JavaScript

Execution

T1539 Steal Web Session Cookie

Collection

T1213 Data from Information Repositories