CVE-2024-8680: MC4WP: Mailchimp for WordPress · Basic XSS
Affects MC4WP: Mailchimp for WordPressSource CVE Database V5
Not known to be exploited · CVSS 4.4 Medium.
Data as of 26 Oct 2026, 06:26 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 44% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 21 Sep 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2026-10-26.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| dvankooten MC4WP: Mailchimp for WordPress | Affected
| Fixed in– |
AI-suggested
Until an official fix is released, restrict administrator access to trusted users only and consider disabling multi-site features if not required. Monitor for updates from the plugin vendor and apply patches promptly once available. Avoid disabling unfiltered_html unless necessary, as this setting affects vulnerability exposure.
Description
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via admin settings in all versions up to, and including, 4.9.16 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with administrator-level permissions and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This only affects multi-site installations and installations where unfiltered_html has been disabled.
References
- wordfence.com/threat-intel/vulnerabilities/id/aa464547-0380-4b91-a5ea-0cd9a66da7a7?source=cve (opens in a new tab)
- github.com/ibericode/mailchimp-for-wordpress/blob/main/includes/views/parts/lists-overview-details.php (opens in a new tab)
- plugins.trac.wordpress.org/browser/mailchimp-for-wp/trunk/includes/views/parts/lists-overview-details.php (opens in a new tab)
- github.com/ibericode/mailchimp-for-wordpress/commit/60c6bfc260a7974f791af1d4ad4a032a3e0bdd3c (opens in a new tab)
- plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3153075%40mailchimp-for-wp%2Ftrunk&old=3149806%40mailchimp-for-wp%2Ftrunk&sfp_email=&sfph_mail= (opens in a new tab)