{"apiVersion":"1.0","identifier":"CVE-2026-4561","description":"The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the form response message post meta fields (e.g., -text_subscribed-, -text_error-) in all versions up to, and including, 4.12.0 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with Author-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.","publishedAt":"2026-08-22T14:16:33","lastModifiedAt":"2026-08-24T16:41:13","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-4561","cvssScore":6.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N","epssProbability":0.00317,"riskScore":0.66,"affectedProduct":"MC4WP: Mailchimp for WordPress","affectedVersions":"<=4.12.0","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-4561","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-4561","en":"https://www.redsauce.net/en/cves/CVE-2026-4561","fr":"https://www.redsauce.net/fr/cves/CVE-2026-4561","pt":"https://www.redsauce.net/pt/cves/CVE-2026-4561","de":"https://www.redsauce.net/de/cves/CVE-2026-4561","sk":"https://www.redsauce.net/sk/cves/CVE-2026-4561","el":"https://www.redsauce.net/el/cves/CVE-2026-4561"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-4561"}}