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CVE-2026-43884— WWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DNS Rebinding in isSSRFSafeURL()

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 29.0及之前版本存在代码问题漏洞，该漏洞源于isSSRFSafeURL()仅验证初始URL，可能导致攻击者通过重定向绕过SSRF保护访问内部地址。

CVSS 7.7 · High EPSS 0.43% · P36

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo <= 29.0 affected
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I. Basic Information for CVE-2026-43884

Vulnerability Information
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Vulnerability Title
WWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DNS Rebinding in isSSRFSafeURL()
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo is an open source video platform. In versions up to and including 29.0, two endpoints (plugin/AI/receiveAsync.json.php and objects/EpgParser.php) in AVideo call isSSRFSafeURL() to validate user-supplied URLs, then fetch them using bare file_get_contents() without disabling PHP's automatic redirect following. An attacker can supply a URL pointing to a server they control that returns a 302 redirect to an internal/cloud-metadata address (e.g., http://169.254.169.254/latest/meta-data/). Since isSSRFSafeURL() only validates the initial URL, the redirect target bypasses all SSRF protections. Commit 603e7bf77a835584387327e35560262feb075db3 contains an updated fix.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
服务端请求伪造(SSRF)
Source: CVE Program / CVE List V5
Vulnerability Title
WWBN AVideo 代码问题漏洞
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 29.0及之前版本存在代码问题漏洞，该漏洞源于isSSRFSafeURL()仅验证初始URL，可能导致攻击者通过重定向绕过SSRF保护访问内部地址。
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 <= 29.0 -

II. Public POCs for CVE-2026-43884

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III. Intelligence Information for CVE-2026-43884

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Patches & Fixes for CVE-2026-43884 (1)

Vendor Advisories for CVE-2026-43884 (1)

Same Patch Batch · WWBN · 2026-05-11 · 13 CVEs total

CVE-2026-43873 7.5 HIGH WWBN AVideo: Unauthenticated Disclosure of CloneSite `myKey` via Error Echo in `cloneClien
CVE-2026-43874 7.2 HIGH WWBN AVideo: Incomplete Fix for YPTSocket autoEvalCodeOnHTML Strip: Unauthenticated Cross-
CVE-2026-43875 6.8 MEDIUM WWBN AVideo: Password Hash Leaked in MobileManager OAuth Redirect URL Enables Account Take
CVE-2026-43876 6.4 MEDIUM WWBN AVideo: HTML Injection in notifySubscribers.json.php Enables Platform-Branded Phishin
CVE-2026-43878 6.1 MEDIUM WWBN AVideo: Reflected XSS in plugin/Meet/iframe.php via Unescaped `user`/`pass` Parameter
CVE-2026-43879 5.4 MEDIUM WWBN AVideo: Blind SSRF in YPTWallet Donation Webhook via Missing isSSRFSafeURL() Check an
CVE-2026-43877 5.4 MEDIUM WWBN AVideo: CSRF in userSavePhoto.php Allows Cross-Origin Overwrite of Any Logged-in User
CVE-2026-43881 5.3 MEDIUM WWBN AVideo: Unauthenticated User Enumeration in `objects/users.json.php` via `isCompany`
CVE-2026-43880 5.3 MEDIUM WWBN AVideo: Unauthenticated Arbitrary Email Sending via sendEmail.json.php Allows Phishin
CVE-2026-43882 4.3 MEDIUM WWBN AVideo: Unauthenticated CRLF/ICS Injection in Scheduler downloadICS.php Allows Calend
CVE-2026-43883 4.2 MEDIUM WWBN AVideo: IDOR in PayPalYPT agreementCancel.json.php Allows Any Authenticated User to C
CVE-2026-43885 WWBN AVideo: Exposure of Sensitive Information to an Unauthorized Actor and Missing Author

IV. Related Vulnerabilities

Same product: AVideo
Same vendor: WWBN
Same weakness: CWE-918

V. Comments for CVE-2026-43884

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