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CVE-2026-12122— Kirki <= 6.0.11 - Missing Authorization to Unauthenticated Sensitive Information Exposure via kirki_post_apis_nopriv AJAX Action

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，该漏洞源于通过get_single_symbol导致敏感信息暴露，可能使未经身份验证的攻击者通过提供顺序WordPress post ID提取完整的构建元数据和渲染HTML。

CVSS 5.3 · Medium EPSS 0.50% · P40

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

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-2026-12122

Vulnerability Information
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Vulnerability Title
Kirki <= 6.0.11 - Missing Authorization to Unauthenticated Sensitive Information Exposure via kirki_post_apis_nopriv AJAX Action
Source: CVE Program / CVE List V5
Vulnerability Description
The Kirki – Freeform Page Builder, Website Builder & Customizer plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 6.0.11 via the get_single_symbol. This makes it possible for unauthenticated attackers to extract the full builder metadata and rendered HTML of any kirki_symbol post — including unpublished drafts — by supplying a sequential WordPress post ID.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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，该漏洞源于通过get_single_symbol导致敏感信息暴露，可能使未经身份验证的攻击者通过提供顺序WordPress post ID提取完整的构建元数据和渲染HTML。
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-2026-12122

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III. Intelligence Information for CVE-2026-12122

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Patches & Fixes for CVE-2026-12122 (2)

News Coverage for CVE-2026-12122 (1)

Other References for CVE-2026-12122 (2)

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-2026-12472 5.3 MEDIUM Kirki <= 6.0.11 - Missing Authorization to Unauthenticated Arbitrary Email Content Injecti

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-12122

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