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CVE-2026-47366

Quick assessment

Affected
phpBB phpBB
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.

phpBB是phpbb团队开源的一套基于PHP的Web论坛软件。 phpBB 3.3.0至3.3.16及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于通过管理控制面板修改权限时访问权限验证不当，可能导致经过身份验证的管理员授予超出其账户授权级别的权限，从而实现管理界面内的权限提升。

AI Predicted 8.1 Difficulty: Easy EPSS 0.54% · P44

Possible ATT&CK Techniques 1 AI

T1078.004 · Cloud Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
phpBB phpBB 3.3.0≤ 3.3.16 affected
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I. Basic Information for CVE-2026-47366

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Improper verification of access permissions when modifying permissions through the Administration Control Panel (ACP) allowed an authenticated administrator to grant permissions beyond the level authorized for their account, resulting in privilege escalation within the administrative interface.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
phpBB 权限许可和访问控制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
phpBB是phpbb团队开源的一套基于PHP的Web论坛软件。 phpBB 3.3.0至3.3.16及之前版本存在权限许可和访问控制问题漏洞，该漏洞源于通过管理控制面板修改权限时访问权限验证不当，可能导致经过身份验证的管理员授予超出其账户授权级别的权限，从而实现管理界面内的权限提升。
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
phpBB phpBB 3.3.0 ~ 3.3.16 -

II. Public POCs for CVE-2026-47366

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III. Intelligence Information for CVE-2026-47366

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Vendor Advisories for CVE-2026-47366 (1)

Same Patch Batch · phpBB · 2026-06-12 · 4 CVEs total

CVE-2026-48611 phpBB 授权问题漏洞
CVE-2026-48613 phpBB SQL注入漏洞
CVE-2026-48612 phpBB 跨站请求伪造漏洞

IV. Related Vulnerabilities

Same product: phpBB
Same vendor: phpBB
Same weakness: CWE-284

V. Comments for CVE-2026-47366

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