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CVE-2026-64961— Authentication Bypass in ATutor

Quick assessment

Affected
ATutor ATutor
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.

ATutor 存在身份验证绕过漏洞。尽管在自动登录功能中包含了令牌验证检查，但在某些代码路径中，令牌验证所需的值未被初始化。能够获取用户标识符和注册时间的未认证攻击者可以生成有效的令牌，并在不知道密码的情况下以现有用户（包括管理员）的身份进行身份验证。 该产品已不再得到积极支持，且漏洞尚未修复。仅测试并确认 2.2.4 版本存在漏洞，其他版本未经过测试，但也可能存在漏洞。

CVSS 6.3 · Medium EPSS 0.37% · P30

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts

Affected Version Matrix 1

VendorProduct Version RangeStatus
ATutor ATutor 2.2.4 affected
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I. Basic Information for CVE-2026-64961

Vulnerability Information
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Vulnerability Title
Authentication Bypass in ATutor
Source: CVE Program / CVE List V5
Vulnerability Description
ATutor is vulnerable to authentication bypass . Although a token validation check is present in the auto-login functionality, the values required for token validation remain uninitialized in certain code paths. An unauthenticated attacker who can determine a user's identifier and registration timestamp can generate a valid token and authenticate as an existing user, including administrator, without knowing the password. Product is no longer actively supported and the vulnerabilities have not been fixed. Only version 2.2.4 was tested and confirmed as vulnerable, other versions were not tested but might also be vulnerable.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
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
ATutor ATutor 2.2.4 -

II. Public POCs for CVE-2026-64961

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III. Intelligence Information for CVE-2026-64961

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Security Blog Posts for CVE-2026-64961 (1)

Same Patch Batch · ATutor · 2026-08-20 · 13 CVEs total

CVE-2026-64960 8.7 HIGH Remote Code Execution via Unrestricted File Upload in ATutor
CVE-2026-64966 8.7 HIGH Path Traversal leading to Remote Code Execution in ATutor
CVE-2026-64967 6.9 MEDIUM Path Traversal in ATutor
CVE-2026-64964 6.3 MEDIUM Generation of Predictable Email Confirmation Token in ATutor
CVE-2026-64965 5.3 MEDIUM Missing Authorization Check in ATutor
CVE-2026-64969 5.3 MEDIUM Insecure Direct Object Reference in ATutor
CVE-2026-64968 5.1 MEDIUM Server-Side Request Forgery in ATutor
CVE-2026-64962 5.1 MEDIUM Cross-Site Request Forgery (CSRF) in ATutor
CVE-2026-64970 5.1 MEDIUM Stored XSS in ATutor
CVE-2026-64971 4.8 MEDIUM Reflected XSS in ATutor
CVE-2026-64972 4.8 MEDIUM Reflected XSS in ATutor
CVE-2026-64963 2.3 LOW Path Traversal in ATutor

IV. Related Vulnerabilities

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

V. Comments for CVE-2026-64961

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