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CVE-2026-53981— Cap-go < v12.128.2 Account Takeover via Unauthenticated Email Change Mechanism

Quick assessment

Affected
Cap-go Cap-go
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.

Capgo是CAPGO公司的一个专为CapacitorJS开发者打造的移动应用开发和更新平台。 Cap-go 12.128.2之前版本存在安全漏洞，该漏洞源于电子邮件更改机制存在账户接管漏洞，可能允许具有临时认证会话访问权限的攻击者无需密码或MFA验证即可更改注册电子邮件地址，并将验证重定向至攻击者控制的电子邮件地址，随后执行密码重置以永久接管受害者账户。

CVSS 7.6 · High EPSS 0.48% · P40

Affected Version Matrix 2

VendorProduct Version RangeStatus
Cap-go Cap-go < 12.128.2 affected
6685e5f11adef257bf3d085e481f4d8ebcec602e unaffected
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I. Basic Information for CVE-2026-53981

Vulnerability Information
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Vulnerability Title
Cap-go < v12.128.2 Account Takeover via Unauthenticated Email Change Mechanism
Source: CVE Program / CVE List V5
Vulnerability Description
Cap-go prior to 12.128.2 contains an account takeover vulnerability in its email change mechanism that allows an attacker with temporary authenticated session access to change the registered email address without re-authentication such as password or MFA verification. Attackers can redirect verification to an attacker-controlled email address and subsequently perform a password reset to permanently take over the victim's account.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
关键功能的认证机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
Capgo 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Capgo是CAPGO公司的一个专为CapacitorJS开发者打造的移动应用开发和更新平台。 Cap-go 12.128.2之前版本存在安全漏洞，该漏洞源于电子邮件更改机制存在账户接管漏洞，可能允许具有临时认证会话访问权限的攻击者无需密码或MFA验证即可更改注册电子邮件地址，并将验证重定向至攻击者控制的电子邮件地址，随后执行密码重置以永久接管受害者账户。
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
Cap-go Cap-go 0 ~ 12.128.2 -

II. Public POCs for CVE-2026-53981

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6584 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-53981

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Patches & Fixes for CVE-2026-53981 (1)

Vendor Advisories for CVE-2026-53981 (2)

IV. Related Vulnerabilities

Same vendor: Cap-go
Same weakness: CWE-306

V. Comments for CVE-2026-53981

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