vulnerability

WordPress Plugin: mailin: CVE-2021-24874: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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Severity

CVSS

(AV:N/AC:M/Au:N/C:N/I:P/A:N)

Published

Jan 12, 2022

Added

May 15, 2025

Modified

Apr 30, 2026

Description

The Newsletter, SMTP, Email marketing and Subscribe forms by Sendinblue WordPress plugin before 3.1.31 does not escape the lang and pid parameter before outputting them back in attributes, leading to Reflected Cross-Site Scripting issues

Solution

mailin-plugin-cve-2021-24874

References

https://www.cve.org/CVERecord?id=CVE-2021-24874
https://www.wordfence.com/threat-intel/vulnerabilities/id/8173596d-a127-4dc1-a72a-640381536c67?source=api-prod
https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-11786
CVE-2021-24874
https://attackerkb.com/topics/CVE-2021-24874
CWE-79
EUVD-EUVD-2021-11786

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