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CVE-2026-64829— Question2Answer 1.8.8 Session Fixation via Forgot-Password Flow

Quick assessment

Affected
q2a question2answer
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.

q2a question2answer是q2a组织的一款问答平台软件。 q2a question2answer 1.8.8及之前版本存在会话机制问题漏洞，该漏洞源于忘记密码重置流程未能清除qa-include/app/users-edit.php中的sessioncode字段，导致攻击者利用此前获得的remember-me cookie在密码重置后保留已验证的访问权限。

CVSS 7.4 · High EPSS 0.42% · P33

Affected Version Matrix 1

VendorProduct Version RangeStatus
q2a question2answer ≤ 1.8.8 affected
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I. Basic Information for CVE-2026-64829

Vulnerability Information
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Vulnerability Title
Question2Answer 1.8.8 Session Fixation via Forgot-Password Flow
Source: CVE Program / CVE List V5
Vulnerability Description
Question2Answer through 1.8.8 contains a session invalidation vulnerability that allows attackers with a previously obtained remember-me cookie to retain authenticated access by exploiting the forgot-password reset flow's failure to clear the sessioncode field in qa-include/app/users-edit.php. While the normal password-change flow in qa-include/pages/account.php explicitly clears the sessioncode to invalidate persistent qa_session cookies, the forgot-password handler qa_finish_reset_user() omits this step, allowing any valid persistent cookie issued before the reset to continue authenticating the account after the password reset completes.
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
不充分的会话过期机制
Source: CVE Program / CVE List V5
Vulnerability Title
q2a question2answer 会话机制问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
q2a question2answer是q2a组织的一款问答平台软件。 q2a question2answer 1.8.8及之前版本存在会话机制问题漏洞，该漏洞源于忘记密码重置流程未能清除qa-include/app/users-edit.php中的sessioncode字段，导致攻击者利用此前获得的remember-me cookie在密码重置后保留已验证的访问权限。
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
q2a question2answer 0 ~ 1.8.8 -

II. Public POCs for CVE-2026-64829

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 8840 chars
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III. Intelligence Information for CVE-2026-64829

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Patches & Fixes for CVE-2026-64829 (1)

Vendor Advisories for CVE-2026-64829 (1)

IV. Related Vulnerabilities

Same weakness: CWE-613

V. Comments for CVE-2026-64829

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