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CVE-2026-33683— AVideo vulnerable to Stored XSS via html_entity_decode() Reversing xss_esc() Sanitization in Channel About Field

CVSS 5.4 · Medium EPSS 0.03% · P10
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I. Basic Information for CVE-2026-33683

Vulnerability Information
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Vulnerability Title
AVideo vulnerable to Stored XSS via html_entity_decode() Reversing xss_esc() Sanitization in Channel About Field
Source: NVD (National Vulnerability Database)
Vulnerability Description
WWBN AVideo is an open source video platform. In versions up to and including 26.0, a sanitization order-of-operations flaw in the user profile "about" field allows any registered user to inject arbitrary JavaScript that executes when other users visit their channel page. The `xss_esc()` function entity-encodes input before `strip_specific_tags()` can match dangerous HTML tags, and `html_entity_decode()` on output reverses the encoding, restoring the raw malicious HTML. Commit 7cfdc380dae1e56bbb5de581470d9e9957445df0 contains a patch.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
WWBN AVideo 跨站脚本漏洞
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及之前版本存在跨站脚本漏洞，该漏洞源于用户个人资料about字段的清理操作顺序存在缺陷，可能导致任意注册用户注入并执行恶意JavaScript代码。
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

VendorProductAffected VersionsCPESubscribe
WWBNAVideo <= 26.0 -

II. Public POCs for CVE-2026-33683

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III. Intelligence Information for CVE-2026-33683

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

CVE-2026-3347810.0 CRITICALAVideo Multi-Chain Attack: Unauthenticated Remote Code Execution via Clone Key Disclosure,
CVE-2026-333529.8 CRITICALAVideo has an Unauthenticated SQL Injection via `doNotShowCats` Parameter (Backslash Escap
CVE-2026-337169.4 CRITICALAVideo Allows Unauthenticated Live Stream Control via Token Verification URL Override in c
CVE-2026-335029.3 CRITICALAVideo has Unauthenticated SSRF via plugin/Live/test.php
CVE-2026-333519.1 CRITICALAVideo has Unauthenticated SSRF via `webSiteRootURL` Parameter in saveDVR.json.php, Chaini
CVE-2026-337178.8 HIGHAVideo Vulnerable to Remote Code Execution via Persistent PHP Temp File in Encoder downloa
CVE-2026-334798.8 HIGHAVideo has PHP Code Injection via eval() in Gallery saveSort.json.php Exploitable Through
CVE-2026-336478.8 HIGHAVideo Vulnerable to Remote Code Execution via MIME/Extension Mismatch in ImageGallery Fil
CVE-2026-336488.8 HIGHAVideo Vulnerable to OS Command Injection via Unsanitized `users_id` and `liveTransmitionH
CVE-2026-335078.8 HIGHAVideo Affected by CSRF on Plugin Import Endpoint Enables Unauthenticated Remote Code Exec
CVE-2026-334808.6 HIGHAVideo has a SSRF Protection Bypass via IPv4-Mapped IPv6 Addresses in Unauthenticated Live
CVE-2026-337198.6 HIGHAVideo Vulnerable to Unauthenticated CDN Configuration Takeover via Empty Default Key Bypa
CVE-2026-335138.6 HIGHAVideo has an Unauthenticated Local File Inclusion in API locale (RCE possible with writab
CVE-2026-336518.1 HIGHAVideo has a Blind SQL Injection in Live Schedule Reminder via Unsanitized live_schedule_i
CVE-2026-334828.1 HIGHAVideo has an OS Command Injection via $() Shell Substitution Bypass in sanitizeFFmpegComm
CVE-2026-336498.1 HIGHAVideo's GET-Based CSRF in setPermission.json.php Enables Privilege Escalation via Arbitra
CVE-2026-333547.6 HIGHAVideo has an authenticated arbitrary local file read via `chunkFile` path injection in `a
CVE-2026-336507.6 HIGHAVideo's Video Moderator Privilege Escalation via Ownership Transfer Enables Arbitrary Vid
CVE-2026-335127.5 HIGHAVideo has an unauthenticated decrypt oracle leaking any ciphertext
CVE-2026-334837.5 HIGHAVideo 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-79

V. Comments for CVE-2026-33683

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