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CVE-2026-12472— Kirki <= 6.0.11 - Missing Authorization to Unauthenticated Arbitrary Email Content Injection (Mail Relay / Phishing) via 'emailBody' and 'emailSubject' Parameters

Quick assessment

Affected
themeum Kirki – Freeform Page Builder, Website Builder & Customizer
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

themeum Kirki – Freeform Page Builder, Website Builder & Customizer是themeum公司的WordPress页面构建器插件。 themeum Kirki 6.0.11及之前版本存在授权问题漏洞，该漏洞源于插件未正确验证用户是否被授权执行操作，可能导致未经身份验证的攻击者发送任意HTML注入邮件，包括嵌入真实有效WordPress密码重置URL的钓鱼消息。

CVSS 5.3 · Medium EPSS 0.60% · P47

Affected Version Matrix 1

VendorProduct Version RangeStatus
themeum Kirki – Freeform Page Builder, Website Builder & Customizer ≤ 6.0.11 affected
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I. Basic Information for CVE-2026-12472

Vulnerability Information
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Vulnerability Title
Kirki <= 6.0.11 - Missing Authorization to Unauthenticated Arbitrary Email Content Injection (Mail Relay / Phishing) via 'emailBody' and 'emailSubject' Parameters
Source: CVE Program / CVE List V5
Vulnerability Description
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 6.0.11. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to send arbitrary HTML-injected emails — including phishing messages embedding a real, valid WordPress password-reset URL for the targeted user — to any registered user via the site's own mail server, abusing its SPF/DKIM reputation. The attacker-controlled emailSubject parameter is passed to wp_mail() with only sanitize_text_field() applied, while emailBody 'text' items are concatenated raw into the HTML email body with no escaping, and 'chip' items can include the genuine WordPress password-reset link for the targeted account.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
themeum Kirki 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
themeum Kirki – Freeform Page Builder, Website Builder & Customizer是themeum公司的WordPress页面构建器插件。 themeum Kirki 6.0.11及之前版本存在授权问题漏洞，该漏洞源于插件未正确验证用户是否被授权执行操作，可能导致未经身份验证的攻击者发送任意HTML注入邮件，包括嵌入真实有效WordPress密码重置URL的钓鱼消息。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
themeum Kirki – Freeform Page Builder, Website Builder & Customizer 0 ~ 6.0.11 -

II. Public POCs for CVE-2026-12472

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III. Intelligence Information for CVE-2026-12472

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Patches & Fixes for CVE-2026-12472 (2)

Vendor Advisories for CVE-2026-12472 (1)

Same Patch Batch · themeum · 2026-07-02 · 3 CVEs total

CVE-2026-57680 6.5 MEDIUM WordPress Kirki plugin <= 6.0.11 - Insecure Direct Object References (IDOR) vulnerability
CVE-2026-12122 5.3 MEDIUM Kirki <= 6.0.11 - Missing Authorization to Unauthenticated Sensitive Information Exposure

IV. Related Vulnerabilities

Same product: Kirki – Freeform Page Builder, Website Builder & Customizer
Same vendor: themeum
Same weakness: CWE-862

V. Comments for CVE-2026-12472

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