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CVE-2026-33492— AVideo has Session Fixation via GET PHPSESSID Parameter With Disabled Login Session Regeneration

Quick assessment

Affected
WWBN AVideo
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.

WWBN AVideo是WWBN团队的一个由PHP编写的视频平台建站系统。 WWBN AVideo 26.0及之前版本存在授权问题漏洞，该漏洞源于会话ID固定和会话再生绕过，可能导致会话劫持攻击。

CVSS 7.3 · High EPSS 0.42% · P34

Possible ATT&CK Techniques 1 AI

T1528 · Steal Application Access Token
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I. Basic Information for CVE-2026-33492

Vulnerability Information
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Vulnerability Title
AVideo has Session Fixation via GET PHPSESSID Parameter With Disabled Login Session Regeneration
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo is an open source video platform. In versions up to and including 26.0, AVideo's `_session_start()` function accepts arbitrary session IDs via the `PHPSESSID` GET parameter and sets them as the active PHP session. A session regeneration bypass exists for specific blacklisted endpoints when the request originates from the same domain. Combined with the explicitly disabled session regeneration in `User::login()`, this allows a classic session fixation attack where an attacker can fix a victim's session ID before authentication and then hijack the authenticated session. Commit 5647a94d79bf69a972a86653fe02144079948785 contains a patch.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
会话固定
Source: CVE Program / CVE List V5
Vulnerability Title
WWBN AVideo 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WWBN AVideo是WWBN团队的一个由PHP编写的视频平台建站系统。 WWBN AVideo 26.0及之前版本存在授权问题漏洞，该漏洞源于会话ID固定和会话再生绕过，可能导致会话劫持攻击。
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
WWBN AVideo <= 26.0 -

II. Public POCs for CVE-2026-33492

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III. Intelligence Information for CVE-2026-33492

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Patches & Fixes for CVE-2026-33492 (1)

Vendor Advisories for CVE-2026-33492 (1)

Same Patch Batch · WWBN · 2026-03-23 · 34 CVEs total

CVE-2026-33478 10.0 CRITICAL AVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure,
CVE-2026-33352 9.8 CRITICAL AVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escap
CVE-2026-33716 9.4 CRITICAL AVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in c
CVE-2026-33502 9.3 CRITICAL AVideo has Unauthenticated SSRF via plugin/Live/test.php
CVE-2026-33351 9.1 CRITICAL AVideo has Unauthenticated SSRF via `webSiteRootURL` Parameter in saveDVR.json.php, Chaini
CVE-2026-33507 8.8 HIGH AVideo Affected by CSRF on Plugin Import Endpoint Enables Unauthenticated Remote Code Exec
CVE-2026-33717 8.8 HIGH AVideo Vulnerable to Remote Code Execution via Persistent PHP Temp File in Encoder downloa
CVE-2026-33648 8.8 HIGH AVideo Vulnerable to OS Command Injection via Unsanitized `users_id` and `liveTransmitionH
CVE-2026-33647 8.8 HIGH AVideo Vulnerable to Remote Code Execution via MIME/Extension Mismatch in ImageGallery Fil
CVE-2026-33479 8.8 HIGH AVideo has PHP Code Injection via eval() in Gallery saveSort.json.php Exploitable Through
CVE-2026-33719 8.6 HIGH AVideo Vulnerable to Unauthenticated CDN Configuration Takeover via Empty Default Key Bypa
CVE-2026-33513 8.6 HIGH AVideo has an Unauthenticated Local File Inclusion in API locale (RCE possible with writab
CVE-2026-33480 8.6 HIGH AVideo has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in Unauthenticated Live
CVE-2026-33651 8.1 HIGH AVideo has a Blind SQL Injection in Live Schedule Reminder via Unsanitized live_schedule_i
CVE-2026-33482 8.1 HIGH AVideo has an OS Command Injection via $() Shell Substitution Bypass in sanitizeFFmpegComm
CVE-2026-33649 8.1 HIGH AVideo's GET-Based CSRF in setPermission.json.php Enables Privilege Escalation via Arbitra
CVE-2026-33354 7.6 HIGH AVideo has an authenticated arbitrary local file read via `chunkFile` path injection in `a
CVE-2026-33650 7.6 HIGH AVideo's Video Moderator Privilege Escalation via Ownership Transfer Enables Arbitrary Vid
CVE-2026-33485 7.5 HIGH AVideo has an Unauthenticated Blind SQL Injection in RTMP on_publish Callback via Stream N
CVE-2026-33483 7.5 HIGH AVideo Affected by Unauthenticated Disk Space Exhaustion via Unlimited Temp File Creation

Showing top 20 of 34 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-384

V. Comments for CVE-2026-33492

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