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CVE-2026-120007— NodeBB 1.18.0 through 4.16.5 Authorization Bypass via /register/complete uid

Quick assessment

Affected
NodeBB NodeBB
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.

NodeBB 1.18.0 至 4.16.5 版本存在一个授权绕过漏洞，允许未认证的用户通过在 POST /register 请求中提供用户 ID（uid），冒充其他账户执行操作。攻击者可在 /register/complete 中间页面提交空电子邮件地址，从而清除受害者的邮箱地址及确认状态，并撤销其所有会话。

CVSS 6.5 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
NodeBB NodeBB 1.18.0≤ 4.16.5 affected
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I. Basic Information for CVE-2026-120007

Vulnerability Information
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Vulnerability Title
NodeBB 1.18.0 through 4.16.5 Authorization Bypass via /register/complete uid
Source: CVE Program / CVE List V5
Vulnerability Description
NodeBB 1.18.0 through 4.16.5 contains an authorization bypass vulnerability that allows unauthenticated visitors to act on other accounts by supplying a uid during POST /register. Attackers can submit an empty email at the /register/complete interstitial to clear a victim's email and confirmation state and revoke all their sessions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
通过用户控制密钥绕过授权机制
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
NodeBB NodeBB 1.18.0 ~ 4.16.5 -

II. Public POCs for CVE-2026-120007

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III. Intelligence Information for CVE-2026-120007

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Other References for CVE-2026-120007 (5)

IV. Related Vulnerabilities

Same product: NodeBB
Same vendor: NodeBB
Same weakness: CWE-639