CVE-2024-7489Network attack vector

Stored script execution via unsanitized form colors

Published Oct 12, 2024 · Updated Apr 8, 2026

Stored cross-site scripting in Forms for Mailchimp by Optin Cat 2.5.7 and earlier allows remote authenticated users to inject web scripts. Form color parameters are stored without sufficient input sanitization and later rendered without output escaping, causing browsers that open an injected page to execute the supplied script. Editor-level access is required; successful exploitation runs arbitrary web scripts in each visitor's session.

CVSS severity4.4
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Forms for Mailchimp by Optin Cat 2.5.7 and earlier allows remote authenticated users to inject web scripts. Form color parameters are stored without sufficient input sanitization and later rendered without output escaping, causing browsers that open an injected page to execute the supplied script. Editor-level access is required; successful exploitation runs arbitrary web scripts in each visitor's session.

The record

CVE
CVE-2024-7489
Published
Oct 12, 2024
Updated
Apr 8, 2026
Vendor
Fatcat Apps
Product
Forms for Mailchimp by Optin Cat
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=2.5.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Fatcat Apps · Forms for Mailchimp by Optin Catversion=0 <=2.5.7

Published CVSS scores

4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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