PT-2026-71499

CVE-2026-27536

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Published

2026-08-11

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Updated

2026-10-23

Description by

CVSS 3.1
7.1
High
MetricsAV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Name of the Vulnerable Software and Affected Versions MailChimp Subscribe Forms versions prior to 4.3.4
Description Stored Cross-Site Scripting (XSS) occurs due to insufficient input sanitization and output escaping. This allows unauthenticated attackers to inject arbitrary web scripts into pages, which execute when a user accesses the affected page.
Recommendations Update to a version newer than 4.3.3.
Exploitability
Fix
Impacts
Vendors
Affected products
Weakness enumeration
CWE-79: Improper Neutralization of Input During Web Page Generation (\'Cross-site Scripting\')
Related identifiers
CVE-2026-27536
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