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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 WPeMatico RSS Feed Fetcher是WordPress基金会开源的一个RSS内容抓取插件。 WordPress WPeMatico RSS Feed Fetcher 2.8.24及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于缺少对wpematico_import_settings函数的能力检查，可能导致经过身份验证的订阅者级别及以上攻击者未经授权修改数据，进而导致权限提升。

CVSS 8.8 · High EPSS 0.69% · P52

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
Vulnerability Title
WordPress WPeMatico RSS Feed Fetcher 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress WPeMatico RSS Feed Fetcher是WordPress基金会开源的一个RSS内容抓取插件。 WordPress WPeMatico RSS Feed Fetcher 2.8.24及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于缺少对wpematico_import_settings函数的能力检查，可能导致经过身份验证的订阅者级别及以上攻击者未经授权修改数据，进而导致权限提升。
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
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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