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CVE-2026-89080— Really Simple Security < 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demotion

Quick assessment

Affected
Unknown Really Simple Security
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.

在 9.8.1 版本之前的 Really Simple Security WordPress 插件，未能阻止未认证请求重置账户已完成的电子邮件双因素认证（2FA）设置。这使得已知账户密码的攻击者能够绕过第二因素认证，从而获取该用户的会话（会话权限最高可达管理员级别）。

AI Predicted 8.1 Difficulty: Moderate
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I. Basic Information for CVE-2026-89080

Vulnerability Information
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Vulnerability Title
Really Simple Security < 9.8.1 - Unauthenticated 2FA Bypass via Email Provider State Demotion
Source: CVE Program / CVE List V5
Vulnerability Description
The Really Simple Security WordPress plugin before 9.8.1 does not prevent an unauthenticated request from resetting an account's completed email two-factor enrolment, allowing an attacker who already knows the account's password to bypass the second factor and obtain that user's session, up to administrator.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Unknown Really Simple Security 9.5.10.1 ~ 9.8.1 -

II. Public POCs for CVE-2026-89080

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III. Intelligence Information for CVE-2026-89080

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Security Blog Posts for CVE-2026-89080 (1)

Same Patch Batch · Unknown · 2026-09-13 · 9 CVEs total

CVE-2026-86407 User Registration & Membership < 5.2.8 - Unauthenticated User Data Disclosure via Membersh
CVE-2026-88764 Simple Membership < 4.7.8 - Subscriber+ Membership Level Escalation via PayPal Standard su
CVE-2026-88912 rtMedia for WordPress, BuddyPress and bbPress < 4.7.12 - Subscriber+ Arbitrary Activity Pr
CVE-2026-88995 Bookit < 2.6.0.1 - Unauthenticated Appointment PII Disclosure via Availability Check
CVE-2026-77773 Social Contact Form (FormyChat) < 2.15.8 - Unauthenticated Gravity Forms Entry Disclosure
CVE-2026-86406 User Registration & Membership < 5.2.8 - Subscriber+ Privilege Escalation via Membership P
CVE-2026-80071 User Registration & Membership < 5.2.8 - Author+ Privilege Escalation to Administrator
CVE-2026-80072 User Registration & Membership < 5.2.8 - Unauthenticated Open Redirect via Login Redirect

IV. Related Vulnerabilities

Same product: Really Simple Security
Same vendor: Unknown

V. Comments for CVE-2026-89080

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