01 Record
CVE-2026-15000
Connect Contact Form 7 and Mailchimp <= 0.9.78.06 - Unauthenticated Stored Cross-Site Scripting via Mailchimp Merge Field Values
HighPUBLISHEDCNA: Wordfence
CNA base score7.2 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
02 Description
Connect Contact Form 7 and Mailchimp <= 0.9.78.06 - Unauthenticated Stored Cross-Site Scripting via Mailchimp Merge Field Values
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.59% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 48.0% of scored records. A rank, not a probability.
- NVD base score
- 7.2 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- NVD analysis status
- Deferred. NVD last modified this record on 2026-07-09.
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-07-09 06:52Z3 MO AGO
- Last updated
- 2026-07-09 14:33Z3 MO AGO
- Reserved
- 2026-07-07
- Assigning CNA
- Wordfence
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.2)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weaknesses
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
- Data version
- 5.2
- Document digest
- 126bc50a0d4b7feeaf7d3df3e04adae6f46d47757d01fabd4b775a6afb9f3739
05 Affected products
VendorProductVersionsPlatforms
06 References
- www.wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/be2579e3-8e40-4603-9ec1-38f43dc1aa29?source=cve
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contact-form-7-mailchimp-extension/tags/0.9.78.05/assets/js/chimpmatic-lite.js#L1706
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contact-form-7-mailchimp-extension/tags/0.9.78.05/includes/services/submission/class-cmatic-merge-vars-builder.php#L30
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contact-form-7-mailchimp-extension/tags/0.9.78.05/includes/api/class-cmatic-contact-lookup.php#L237
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contact-form-7-mailchimp-extension/tags/0.9.78.05/assets/js/chimpmatic-lite.js#L2036
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contact-form-7-mailchimp-extension/trunk/assets/js/chimpmatic-lite.js#L1706
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contact-form-7-mailchimp-extension/trunk/includes/services/submission/class-cmatic-merge-vars-builder.php#L30
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contact-form-7-mailchimp-extension/trunk/includes/api/class-cmatic-contact-lookup.php#L237
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/browser/contact-form-7-mailchimp-extension/trunk/assets/js/chimpmatic-lite.js#L2036
- plugins.trac.wordpress.orghttps://plugins.trac.wordpress.org/changeset?reponame=&old=3599649%40contact-form-7-mailchimp-extension&new=3599649%40contact-form-7-mailchimp-extension