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CVE-2026-19883— WPeMatico RSS Feed Fetcher <= 2.8.24 - Authenticated (Subscriber+) Privilege Escalation via Arbitrary Option Update to wpematico_import_settings admin_action

Quick assessment

Affected
etruel WPeMatico RSS Feed Fetcher
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress 的 WPeMatico RSS Feed Fetcher 插件存在漏洞，可导致未经授权的数据修改和权限提升。该漏洞源于 函数缺少能力检查（capability check），影响所有 2.8.24 及更早版本。这使得经过身份验证的攻击者（拥有订阅者及以上权限）能够更新 WordPress 站点中的任意选项。攻击者可利用此漏洞将用户注册默认角色设置为管理员，并启用用户注册功能，从而获取管理员访问权限。

CVSS 8.8 · High EPSS 0.37% · P30

Affected Version Matrix 1

VendorProduct Version RangeStatus
etruel WPeMatico RSS Feed Fetcher ≤ 2.8.24 affected
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I. Basic Information for CVE-2026-19883

Vulnerability Information
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Vulnerability Title
WPeMatico RSS Feed Fetcher <= 2.8.24 - Authenticated (Subscriber+) Privilege Escalation via Arbitrary Option Update to wpematico_import_settings admin_action
Source: CVE Program / CVE List V5
Vulnerability Description
The WPeMatico RSS Feed Fetcher plugin for WordPress is vulnerable to unauthorized modification of data that can lead to privilege escalation due to a missing capability check on the wpematico_import_settings function in all versions up to, and including, 2.8.24. This makes it possible for authenticated attackers, with subscriber-level access and above, to update arbitrary options on the WordPress site. This can be leveraged to update the default role for registration to administrator and enable user registration for attackers to gain administrative user access.
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
etruel WPeMatico RSS Feed Fetcher 0 ~ 2.8.24 -

II. Public POCs for CVE-2026-19883

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 9185 chars
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III. Intelligence Information for CVE-2026-19883

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Patches & Fixes for CVE-2026-19883 (3)

Vendor Advisories for CVE-2026-19883 (1)

IV. Related Vulnerabilities

Same product: WPeMatico RSS Feed Fetcher
Same vendor: etruel
Same weakness: CWE-269

V. Comments for CVE-2026-19883

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