CVE-2026-63171— Omnispace Agora Project < 26.10.0 Stored XSS via Category Description
Quick assessment
Affected
Omnispace Agora Project
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.
Omnispace Agora Project 在版本 26.10.0 之前存在一个存储型跨站脚本（XSS）漏洞。经过身份验证的攻击者可以通过提交包含双引号字符的精心构造的论坛类别描述，突破 HTML 输入值属性（attribute）的上下文，从而注入恶意脚本。攻击者可以利用 HTMLPurifier 配置中保留双引号的特性，逃逸出属性上下文，并在查看该论坛类别的用户浏览器中执行任意脚本。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
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I. Basic Information for CVE-2026-63171
Vulnerability Information
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Vulnerability Title
Omnispace Agora Project < 26.10.0 Stored XSS via Category Description
Source: CVE Program / CVE List V5
Vulnerability Description
Omnispace Agora Project before 26.10.0 contains a stored cross-site scripting vulnerability that allows authenticated attackers to inject malicious script by submitting a crafted forum category description containing a double-quote character that breaks out of an HTML input value attribute. Attackers can exploit the HTMLPurifier configuration that preserves double-quotes to escape the attribute context and execute arbitrary script in the browser of users viewing the forum category.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Omnispace | Agora Project | 0 ~ 26.10.0 | - |
|
II. Public POCs for CVE-2026-63171
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-63171 (1)
Vendor Advisories for CVE-2026-63171 (1)
Vendor Pages for CVE-2026-63171 (1)
Same Patch Batch · Omnispace · 2026-10-13 · 21 CVEs total
| CVE-2026-63146 | 9.8 CRITICAL | Omnispace Agora Project < 26.10.0 PHP Code Injection via config.inc.php |
| CVE-2026-63161 | 8.8 HIGH | Omnispace Agora Project < 26.10.0 Session Fixation via Authentication |
| CVE-2026-63162 | 8.8 HIGH | Omnispace Agora Project < 26.10.0 Path Traversal via tmpFolderName Parameter |
| CVE-2026-63154 | 8.8 HIGH | Omnispace Agora Project < 26.10.0 SQL Identifier Injection via agoraFields[] |
| CVE-2026-63153 | 8.1 HIGH | Omnispace Agora Project < 26.10.0 Broken Access Control via setAffectations() |
| CVE-2026-63174 | 8.1 HIGH | Omnispace Agora Project < 26.10.0 Broken Access Control via spaceAffectList |
| CVE-2026-63165 | 8.1 HIGH | Omnispace Agora Project < 26.10.0 SQL Injection via sortEvents Parameter |
| CVE-2026-63152 | 8.1 HIGH | Omnispace Agora Project < 26.10.0 Second-Order SQL Injection via _idCategoryFilter |
| CVE-2026-63163 | 7.5 HIGH | Omnispace Agora Project < 26.10.0 Broken Access Control via MobileFileDownload |
| CVE-2026-63149 | 7.4 HIGH | Omnispace Agora Project < 26.10.0 Predictable Default Password via uniqid() |
| CVE-2026-63158 | 7.4 HIGH | Omnispace Agora Project < 26.10.0 Pass-the-Hash Authentication Bypass via Cookies |
| CVE-2026-63159 | 7.4 HIGH | Omnispace Agora Project < 26.10.0 Predictable Password-Reset Token Account Takeover |
| CVE-2026-63160 | 7.4 HIGH | Omnispace Agora Project < 26.10.0 Insecure Remember-Me Token Storage |
| CVE-2026-63172 | 7.1 HIGH | Omnispace Agora Project < 26.10.0 Broken Function-Level Authorization via User-Edit |
| CVE-2026-63169 | 6.4 MEDIUM | Omnispace Agora Project < 26.10.0 Stored XSS via Messenger Iframe |
| CVE-2026-63156 | 6.1 MEDIUM | Omnispace Agora Project < 26.10.0 Reflected XSS via visioUrl Parameter |
| CVE-2026-63147 | 5.4 MEDIUM | Omnispace Agora Project < 26.10.0 Stored XSS via Uploaded File Name |
| CVE-2026-63148 | 5.4 MEDIUM | Omnispace Agora Project < 26.10.0 Stored XSS via Poll-Response Attachment Filename |
| CVE-2026-63168 | 5.4 MEDIUM | Omnispace Agora Project < 26.10.0 Stored XSS via Nested POST Array Bypass |
| CVE-2026-63157 | 5.4 MEDIUM | Omnispace Agora Project < 26.10.0 Stored XSS via Links Module |
IV. Related Vulnerabilities
Same product: Agora Project
-
CVE-2026-63169
Omnispace Agora Project < 26.10.0 Stored XSS via Messenger I -
CVE-2026-63168
Omnispace Agora Project < 26.10.0 Stored XSS via Nested POST -
CVE-2026-63157
Omnispace Agora Project < 26.10.0 Stored XSS via Links Modul -
CVE-2026-63156
Omnispace Agora Project < 26.10.0 Reflected XSS via visioUrl -
CVE-2026-63148
Omnispace Agora Project < 26.10.0 Stored XSS via Poll-Respon
Same vendor: Omnispace
-
CVE-2026-63169
Omnispace Agora Project < 26.10.0 Stored XSS via Messenger I -
CVE-2026-63168
Omnispace Agora Project < 26.10.0 Stored XSS via Nested POST -
CVE-2026-63157
Omnispace Agora Project < 26.10.0 Stored XSS via Links Modul -
CVE-2026-63156
Omnispace Agora Project < 26.10.0 Reflected XSS via visioUrl -
CVE-2026-63148
Omnispace Agora Project < 26.10.0 Stored XSS via Poll-Respon
Same weakness: CWE-79
-
CVE-2026-91159
Discourse: Stored oEmbed HTML injection via allowed iframe -
CVE-2026-89069
MOVEit Transfer Stored XSS Vulnerability in Ad Hoc Packages -
CVE-2026-60008
Gitea Jupyter notebook UI redress through CSS class injectio -
CVE-2026-110627
ClipBucket v5 through 5.5.3-#206 Reflected XSS via add_todo -
CVE-2026-110626
ClipBucket v5 through 5.5.3-#206 Reflected XSS via edit_lang
V. Comments for CVE-2026-63171
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