CVE-2026-89253— AVideo Stored XSS via donationLink in watch page button
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 在提交 c3edcc274c389816d434acadac07ee78eaf330c1 中存在一个存储型跨站脚本（XSS）漏洞，位置在用户的 资料字段中。 （位于 objects/user.php）保存该值，而 方法仅使用 进行校验，该校验会接受诸如 这样的字符串。而 仅应用 ，且未对双引号进行编码。 将该值未经编码地直接输出到 属性中；当启用 CustomizeUser 选项中的 时，该按钮会在观看页面通过 被包含进来。因此，一个已认证的用户通过 更新自己的资料后，可以跳出 属性并注入事
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-89253
Vulnerability Information
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Vulnerability Title
AVideo Stored XSS via donationLink in watch page button
Source: CVE Program / CVE List V5
Vulnerability Description
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains a stored cross-site scripting vulnerability in the user 'donationLink' profile field. User::setDonationLink() (objects/user.php) stores the value and save() validates it only with filter_var(..., FILTER_VALIDATE_URL), which accepts strings such as http://evil.example/"onmouseover=alert(document.domain)//, while getDonationLink() applies only strip_tags() and does not encode double quotes. plugin/CustomizeUser/actionButton.php echoes the value unencoded into an <a href="..."> attribute, and that button is included from view/modeYoutubeBottom.php on the watch page when the CustomizeUser option allowDonationLink is enabled. An authenticated user who updates their own profile via objects/userUpdate.json.php can therefore break out of the href attribute and inject an event handler that executes JavaScript in the browser of any visitor—including an administrator—who views the attacker's videos and interacts with (for example, hovers over) the donation button. The issue was unfixed at the time of reporting.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-89253
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Vendor Advisories for CVE-2026-89253 (2)
Same Patch Batch · WWBN · 2026-09-11 · 20 CVEs total
| CVE-2026-89256 | 8.7 HIGH | AVideo Bookmark Plugin Stored XSS via Chapter Names |
| CVE-2026-89249 | 8.7 HIGH | AVideo YPTWallet Stored XSS via CryptoWallet Configuration |
| CVE-2026-89255 | 8.7 HIGH | AVideo LoginControl Stored XSS via PGP Public Key |
| CVE-2026-89254 | 8.7 HIGH | AVideo CustomizeUser Stored XSS via field_name Parameter |
| CVE-2026-89243 | 8.1 HIGH | WWBN AVideo Stored XSS via UserGroups setGroup_name |
| CVE-2026-89250 | 7.5 HIGH | WWBN AVideo Unauthenticated File Read via getRecordedFile.php |
| CVE-2026-89242 | 7.2 HIGH | WWBN AVideo Unauthenticated SSRF via login.json.php |
| CVE-2026-89245 | 6.5 MEDIUM | WWBN AVideo Cross-Site Request Forgery via playlistRemove.php |
| CVE-2026-89252 | 6.5 MEDIUM | AVideo Missing Authorization in addLiveLink.php LiveLink Update |
| CVE-2026-89251 | 6.5 MEDIUM | AVideo Missing Authorization via AD_Server log.php Wallet Credit |
| CVE-2026-89244 | 6.1 MEDIUM | WWBN AVideo Reflected XSS via Gallery Category getBackURL |
| CVE-2026-89241 | 6.1 MEDIUM | WWBN AVideo Reflected XSS via confirmLivePassword.php |
| CVE-2026-89247 | 6.1 MEDIUM | WWBN AVideo XML Injection via plugin/AD_Server/VMAP.php |
| CVE-2026-89239 | 6.1 MEDIUM | WWBN AVideo Reflected XSS via Referer Header Comment Breakout |
| CVE-2026-89240 | 6.1 MEDIUM | WWBN AVideo Reflected XSS via confirmLivePassword.php |
| CVE-2026-89148 | 5.4 MEDIUM | AVideo Open Redirect via playlistSort.php Referer Header |
| CVE-2026-89246 | 5.4 MEDIUM | WWBN AVideo CSV Formula Injection via myComments.download.php |
| CVE-2026-89257 | 5.4 MEDIUM | AVideo through 29.0 Cross-User Category Asset Deletion via Missing Ownership Check |
| CVE-2026-89248 | 5.3 MEDIUM | AVideo WebRTC Plugin Information Disclosure via status.json.php |
IV. Related Vulnerabilities
Same product: AVideo
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CVE-2026-90552
WWBN AVideo Missing Authorization via Playlists_schedules li -
CVE-2026-90550
WWBN AVideo Missing Authorization via mediaSession.json.php -
CVE-2026-90551
WWBN AVideo Missing Authorization via video_from_program API -
CVE-2026-90549
WWBN AVideo Missing Authorization via videosAndroid.json.php -
CVE-2026-90548
WWBN AVideo Missing Authorization in ImageGallery list.json.
Same vendor: WWBN
-
CVE-2026-90552
WWBN AVideo Missing Authorization via Playlists_schedules li -
CVE-2026-90550
WWBN AVideo Missing Authorization via mediaSession.json.php -
CVE-2026-90551
WWBN AVideo Missing Authorization via video_from_program API -
CVE-2026-90549
WWBN AVideo Missing Authorization via videosAndroid.json.php -
CVE-2026-90548
WWBN AVideo Missing Authorization in ImageGallery list.json.
Same weakness: CWE-79
-
CVE-2026-10148
Booking for Appointments and Events Calendar – Amelia <= 2.4 -
CVE-2026-89268
QloApps through 1.7.0 Reflected XSS via List Filter Paramete -
CVE-2026-90443
软件未认证反射型XSS漏洞 -
CVE-2026-54165
Stored DOM-XSS in public shared-folder image gallery (one-cl -
CVE-2026-81918
Concrete CMS below 9.5.3 is vulnerable to Stored XSS via the
V. Comments for CVE-2026-89253
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