Easy Forms for MailChimp < 6.8.9 - Admin+ Stored XSS
Priority MEDIUM 55Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The Easy Forms for Mailchimp WordPress plugin before 6.8.9 does not sanitise and escape some of its from parameters, which could allow high privilege users such as admin to perform Stored Cross-Site Scripting attacks even when the unfiltered_html capability is disallowed (for example in multisite setup)
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00444 38th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Easy Forms for Mailchimp (Unknown): 6.8.9
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | Easy Forms for Mailchimp | before 6.8.9 | 6.8.9 | Patch available | CNA |
- Easy Forms for Mailchimp VendorUnknown Affected before 6.8.9 Fixed in 6.8.9 Patch available CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:yikesinc:easy_forms_for_mailchimp:*:*:*:*:*:wordpress:*:* | before 6.8.9 | Vulnerable | YIKES, Inc. |
- cpe:2.3:a:yikesinc:easy_forms_for_mailchimp:*:*:*:*:*:wordpress:*:* Versions before 6.8.9 Vulnerable ·YIKES, Inc.
Remediation
- Fix · CNA Easy Forms for Mailchimp (Unknown) Fixed in 6.8.9
Timeline
- 2026-10-02 Threatist record created from CVE-2023-1323
- 2026-10-03 Alias added: GHSA-8rjg-q394-qc97
References
More YIKES, Inc. Easy Forms For Mailchimp vulnerabilities
- TI-2023-02360 Easy Forms for Mailchimp < 6.8.9 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2023-01251 Easy Forms for MailChimp < 6.8.8 - Reflected XSS CVSS 3.1MEDIUM 6.1
- TI-2023-01252 Easy Forms for MailChimp < 6.8.7 - Contributor+ Stored XSS CVSS 3.1MEDIUM 5.4
- TI-2023-04536 Easy Forms for Mailchimp <= 6.8.10 - Admin+ Stored Cross-Site Scripting CVSS 3.1MEDIUM 4.8
- TI-2019-11422 The yikes-inc-easy-mailchimp-extender plugin before 6.5.3 for WordPress has code injection via the admin input field. CVSS 3.0CRITICAL 9.8
- TI-2021-07264 Easy Forms for Mailchimp < 6.8.6 - Reflected Cross-Site Scripting CVSS 3.1MEDIUM 6.1
Sources
- CVE-2023-1323 · CVE Program
- CVE-2023-1323 · NVD
- FIRST EPSS
- GHSA-8rjg-q394-qc97 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences