CVE-2026-84777— WordPress Really Simple SSL plugin <= 9.8.0 - 2FA Bypass vulnerability
Quick assessment
Affected
Really Simple Plugins Really Simple SSL
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 Really Simple SSL 9.8.0 及更早版本中，存在未认证的认证失效漏洞。
Possible ATT&CK Techniques 3 AI
T1078 · Valid Accounts T1557 · Adversary-in-the-Middle T1110 · Brute ForceAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Really Simple Plugins | Really Simple SSL | n/a≤ 9.8.0 |
affected |
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I. Basic Information for CVE-2026-84777
Vulnerability Information
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Vulnerability Title
WordPress Really Simple SSL plugin <= 9.8.0 - 2FA Bypass vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Unauthenticated Broken Authentication in Really Simple SSL <= 9.8.0 versions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
使用候选路径或通道进行的认证绕过
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Really Simple Plugins | Really Simple SSL | n/a ~ 9.8.0 | - |
|
II. Public POCs for CVE-2026-84777
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Vendor Advisories for CVE-2026-84777 (1)
IV. Related Vulnerabilities
Same product: Really Simple SSL
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CVE-2026-84775
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CVE-2026-48970
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CVE-2026-48969
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CVE-2026-32461
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CVE-2025-24623
WordPress Really Simple Security plugin <= 9.1.4 - Cross Sit
Same vendor: Really Simple Plugins
-
CVE-2026-84775
WordPress Really Simple SSL plugin <= 9.8.0 - Denial of Serv -
CVE-2026-48970
WordPress Really Simple SSL plugin <= 9.5.10 - Broken Authen -
CVE-2026-32461
WordPress Really Simple SSL plugin <= 9.5.7 - Broken Access -
CVE-2025-24623
WordPress Really Simple Security plugin <= 9.1.4 - Cross Sit -
CVE-2024-10924
Really Simple Security (Free, Pro, and Pro Multisite) 9.0.0
Same weakness: CWE-288
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V. Comments for CVE-2026-84777
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