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CVE-2026-16135— VibeBP <= 1.9.9.8.1 - Authenticated (Subscriber+) Privilege Escalation in set_email_notification_settings()

Quick assessment

Affected
VibeThemes VibeBP
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 VibeBP 插件在所有 1.9.9.8.1 及更早版本中存在权限提升漏洞。该漏洞源于插件允许通过 函数更新任意用户元数据。这使得拥有订阅者（Subscriber）及以上权限的已认证攻击者能够通过修改自身的 用户元数据值，自行授予管理员权限。

CVSS 8.8 · High

Possible ATT&CK Techniques 1 AI

T1068 · Exploitation for Privilege Escalation
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I. Basic Information for CVE-2026-16135

Vulnerability Information
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Vulnerability Title
VibeBP <= 1.9.9.8.1 - Authenticated (Subscriber+) Privilege Escalation in set_email_notification_settings()
Source: CVE Program / CVE List V5
Vulnerability Description
The VibeBP plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 1.9.9.8.1. This is due to the plugin allowing arbitrary user meta updates through the set_email_notification_settings() function. This makes it possible for authenticated attackers, with Subscriber-level access and above, to grant themselves administrator privileges by updating their own 'wp_capabilities' user meta value.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
特权管理不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
VibeThemes VibeBP 0 ~ 1.9.9.8.1 -

II. Public POCs for CVE-2026-16135

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III. Intelligence Information for CVE-2026-16135

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Vendor Pages for CVE-2026-16135 (1)

Other References for CVE-2026-16135 (1)

IV. Related Vulnerabilities

Same product: VibeBP
Same vendor: VibeThemes
Same weakness: CWE-269