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CVE-2026-15947— Search Atlas SEO <= 2.6.23 - Missing Authorization to Authenticated (Subscriber+) Site-Wide Option Modification via 'metasync_post_types' Parameter

Quick assessment

Affected
shahrukhlinkgraph Search Atlas SEO – OTTO AI SEO Automation for WordPress
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.

WordPress 的 MetaSync 插件存在未授权数据修改漏洞。在包括 2.6.23 及之前版本中， 函数缺少能力检查（capability check）。该函数注册在 钩子上，仅检查 是否存在，然后将攻击者提供的 通过 写入站点级的 选项；该过程未执行 或 权限校验，也未进行 nonce（CSRF 令牌）验证。因此，拥有订阅者（Subscriber）或更高权限的已认证攻击者可以修改站点的 Google 即时索引（Instant Indexing）帖子类型配置，从而控制哪些帖子类型会被自动提交至 Google

CVSS 4.3 · Medium

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2026-15947

Vulnerability Information
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Vulnerability Title
Search Atlas SEO <= 2.6.23 - Missing Authorization to Authenticated (Subscriber+) Site-Wide Option Modification via 'metasync_post_types' Parameter
Source: CVE Program / CVE List V5
Vulnerability Description
The Metasync plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the save_instant_indexing_settings() function in versions up to, and including, 2.6.23. This function is registered on the admin_init hook and only checks for the presence of $_POST['submit'] before writing attacker-supplied $_POST['metasync_post_types'] into the site-wide 'metasync_options_instant_indexing' option via update_option(); no current_user_can()/current_user_has_plugin_access() check and no nonce verification are performed. This makes it possible for authenticated attackers, with Subscriber-level access and above, to modify the site's Google Instant Indexing post-type configuration, controlling which post types are auto-submitted to Google's Instant Indexing service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/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

Affected Products

Vendor Product Affected Versions CPE Subscribe
shahrukhlinkgraph Search Atlas SEO – OTTO AI SEO Automation for WordPress 0 ~ 2.6.23 -

II. Public POCs for CVE-2026-15947

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III. Intelligence Information for CVE-2026-15947

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Patches & Fixes for CVE-2026-15947 (1)

Vendor Advisories for CVE-2026-15947 (1)

Other References for CVE-2026-15947 (6)

IV. Related Vulnerabilities

Same product: Search Atlas SEO – OTTO AI SEO Automation for WordPress
Same vendor: shahrukhlinkgraph
Same weakness: CWE-862

V. Comments for CVE-2026-15947

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