XSS in Pluginops Mailchimp Subscribe Forms

CVE-2025-22727

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in PluginOps MailChimp Subscribe Forms mailchimp-subscribe-sm allows Stored XSS.This issue affects MailChimp Subscribe Forms : from n/a through <= 4.1.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.002 (12.9th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 12.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2025-22727: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2025-22727?
CVE-2025-22727 is a medium-severity vulnerability in Pluginops Mailchimp Subscribe Forms, classified under Cross-site Scripting. CVSS score: 6.5/10. Published 2025-01-21.
How severe is CVE-2025-22727?
Medium severity. CVSS v3 base score is 6.5 out of 10.
Is CVE-2025-22727 known to be exploited?
1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.