CVE-2021-24420: Request a Quote < 2.3.4 - Authenticated Stored XSS

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.6% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2021-07-12 · updated 2026-06-17
Weakness: CWE-79

Description

The Request a Quote WordPress plugin before 2.3.4 did not sanitise and escape some of its quote fields when adding/editing a quote as admin, leading to Stored Cross-Site scripting issues when the quote is output in the 'All Quotes" table.

Affected products

Request a Quote: before 2.3.4 — fixed in 2.3.4

How to fix

Upgrade to a fixed version: Request a Quote 2.3.4. Check the vendor advisory for mitigations.

References

https://wpscan.com/vulnerability/426eafb1-0261-4e7e-8c70-75bf4c476f18
https://wpscan.com/vulnerability/426eafb1-0261-4e7e-8c70-75bf4c476f18

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