CVE-2015-5488: Cross-site scripting (XSS) vulnerability in the MailChimp Signup submodule in the MailChimp module 7.x-3.x bef

Routine

LOW 2.1DOWNGRADE

CVE-2015-5488 is a low-severity flaw (CVSS 2.1) affecting mailchimp. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Cross-site scripting (XSS) vulnerability in the MailChimp Signup submodule in the MailChimp module 7.x-3.x before 7.x-3.3 for Drupal allows remote authenticated users with the "administer mailchimp" permission to inject arbitrary web script or HTML via unspecified vectors.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-79
Published	2015-08-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: thinkshout

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2015-08-18 17:59 UTCPublished CVE record published
2026-06-17 00:29 UTCUpdated Record last modified

thinkshout mailchimp DOWNGRADE

Affected: 7.x-3.0 · 7.x-3.0 alpha1 · 7.x-3.0 beta1 · 7.x-3.1 · 7.x-3.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.x-3.0

1. Check installed version

apt-cache policy mailchimp || rpm -q mailchimp || mailchimp --version

2. No fixed release: DOWNGRADE to a release before 7.x-3.0 (Debian / Ubuntu)

apt-cache madison mailchimp sudo apt install mailchimp=<VERSION_BEFORE_7.x-3.0> sudo apt-mark hold mailchimp

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list mailchimp sudo dnf downgrade mailchimp-<VERSION_BEFORE_7.x-3.0> sudo dnf versionlock add mailchimp

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2015-5488?

mailchimp: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2015-5488 being exploited?

CVE-2015-5488 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2015-5488 affect?

CVE-2015-5488 affects mailchimp. Severity is low (CVSS 2.1). Cross-site scripting (XSS) vulnerability in the MailChimp Signup submodule in the MailChimp module 7.x-3.x before 7.x-3.3 for Drupal allows remote authenticated users with the "administer mailchimp" permission to inject arbitrary web script

How urgent is CVE-2015-5488?

Priority 25/100. No elevated risk signals yet.

Software pages

Drupal vulnerabilities

Related CVEs

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CVE-2024-8680 MEDIUM 4.4 UPGRADE The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin
CVE-2023-51682 MEDIUM 5.3 UPGRADE Missing Authorization vulnerability in ibericode MC4WP.This issue affects MC4WP: from n/a through 4.9.9.
CVE-2023-32517 MEDIUM 4.7 UPGRADE URL Redirection to Untrusted Site ('Open Redirect') vulnerability in PluginOps MailChimp Subscribe Form, Optin
CVE-2012-5551 MEDIUM 4.3 DOWNGRADE Multiple cross-site scripting (XSS) vulnerabilities in the MailChimp module 7.x-2.x before 7.x-2.7 for Drupal

References

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