TI-2024-08095 Aliases CVE-2024-8726 GHSA-cq6m-qc88-xjpx

MailChimp Forms by MailMunch <= 3.2.3 - Reflected Cross-Site Scripting

LOW 27CWE-79Published 2024-11-20 · Updated 2026-04-08

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Cross-site scripting
Confidentiality · integrity · availability: Low · Low · None
Fix status: No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

The MailChimp Forms by MailMunch plugin for WordPress is vulnerable to Reflected Cross-Site Scripting due to the use of add_query_arg without appropriate escaping on the URL in all versions up to, and including, 3.2.3. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute if they can successfully trick a user into performing an action such as clicking on a link.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00331 26th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
MailMunch	MailChimp Forms by MailMunch	up to 3.2.3	—	No fix listed	CNA

MailChimp Forms by MailMunch VendorMailMunch Affected up to 3.2.3 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mailmunch:mailchimp_forms::::::wordpress::*	before 3.2.4	Vulnerable	MailMunch

cpe:2.3:a:mailmunch:mailchimp_forms:*:*:*:*:*:wordpress:*:* Versions before 3.2.4 Vulnerable ·MailMunch

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-8726
2026-10-03 Alias added: GHSA-cq6m-qc88-xjpx

References

Patch 1

https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=3189361%40mailchimp-forms-by-mailmunch&new=3189361%40mailchimp-forms-by-mailmunch&sfp_email=&sfph_mail=

Advisory 1

https://www.wordfence.com/threat-intel/vulnerabilities/id/a1a1c5e7-75a4-4ca5-9707-4076b92e0c33?source=cve

TI-2023-21073 WordPress MailChimp Forms by MailMunch plugin <= 3.1.4 - Broken Access Control CVSS 3.1HIGH 8.8
TI-2023-24522 WordPress MailChimp Forms by MailMunch Plugin <= 3.1.4 is vulnerable to Cross Site Request Forgery (CSRF) CVSS 3.1HIGH 8.8
TI-2024-20750 WordPress MailChimp Forms by MailMunch plugin <= 3.2.1 - Cross Site Request Forgery (CSRF) vulnerability CVSS 3.1HIGH 8.8
TI-2024-19569 WordPress MailChimp Forms by MailMunch plugin <= 3.2.2 - Cross Site Scripting (XSS) vulnerability CVSS 3.1MEDIUM 6.5

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences