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CVE-2026-43879— WWBN AVideo: Blind SSRF in YPTWallet Donation Webhook via Missing isSSRFSafeURL() Check and CURLOPT_FOLLOWLOCATION Redirect Bypass

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，该漏洞源于未验证捐赠通知Webhook URL，可能导致攻击者利用SSRF访问内部或云元数据端点。

CVSS 5.4 · Medium EPSS 0.26% · P17

Affected Version Matrix 1

VendorProduct Version RangeStatus
WWBN AVideo <= 29.0 affected
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I. Basic Information for CVE-2026-43879

Vulnerability Information
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Vulnerability Title
WWBN AVideo: Blind SSRF in YPTWallet Donation Webhook via Missing isSSRFSafeURL() Check and CURLOPT_FOLLOWLOCATION Redirect Bypass
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo is an open source video platform. In versions up to and including 29.0, an authenticated user can configure their own donation-notification webhook URL to point at internal/loopback/metadata hosts (e.g. http://127.0.0.1:8080/..., http://169.254.169.254/latest/..., RFC1918 addresses). When any other user (including a second account owned by the same attacker) donates even a trivial amount via plugin/CustomizeUser/donate.json.php, the AVideo server issues a curl POST to the attacker-supplied URL, resulting in a blind SSRF. The handler uses only isValidURL() (which is a format check) and does not call the codebase's own isSSRFSafeURL() helper. Additionally, CURLOPT_FOLLOWLOCATION is enabled with no per-hop revalidation, so even if the stored URL were validated, an HTTP 307 from an attacker-controlled host could redirect the POST to internal targets. Commit aaacd48f29f1ff71d1eb5fc81d37605f593cefa9 contains an updated fix.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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，该漏洞源于未验证捐赠通知Webhook URL，可能导致攻击者利用SSRF访问内部或云元数据端点。
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-2026-43879

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III. Intelligence Information for CVE-2026-43879

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Patches & Fixes for CVE-2026-43879 (1)

Vendor Advisories for CVE-2026-43879 (1)

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

CVE-2026-43884 7.7 HIGH WWBN AVideo: SSRF Protection Bypass via HTTP Redirect and DNS Rebinding in isSSRFSafeURL()
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-2026-43877 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-2026-43879

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