What’s Vulnerable › Vulnerabilities

CVE-2021-24373: WP Hardening < 1.2.2 - Reflected XSS via historyvalue

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2021-06-21 · updated 2026-06-17
• Weakness: CWE-79

Description

The WP Hardening – Fix Your WordPress Security WordPress plugin before 1.2.2 did not sanitise or escape the historyvalue GET parameter before outputting it in a Javascript block, leading to a reflected Cross-Site Scripting issue.

Affected products

• WP Hardening – Fix Your WordPress Security: before 1.2.2 — fixed in 1.2.2

How to fix

Upgrade to a fixed version: WP Hardening – Fix Your WordPress Security 1.2.2. Check the vendor advisory for mitigations.

References

• https://wpscan.com/vulnerability/fcf17278-609f-4f75-8a87-9b4579dee1c8
• https://wpscan.com/vulnerability/fcf17278-609f-4f75-8a87-9b4579dee1c8

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