CVE-2026-29048— HumHub: XSS in Button component
Quick assessment
Affected
humhub humhub
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.
HumHub是HumHub开源的一套基于Yii PHP框架编写的开源社交网络软件。 HumHub 1.18.0版本存在跨站脚本漏洞，该漏洞源于Button组件中输出编码不一致，可能导致恶意脚本在用户浏览器环境中注入和执行。
Possible ATT&CK Techniques 1 AI
T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-29048
Vulnerability Information
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Vulnerability Title
HumHub: XSS in Button component
Source: CVE Program / CVE List V5
Vulnerability Description
HumHub is an Open Source Enterprise Social Network. In version 1.18.0, a cross-site scripting vulnerability was identified in the Button component of version 1.18.0. Due to inconsistent output encoding at several points within the software, malicious scripts could be injected and executed in the context of the user's browser. This issue has been patched in version 1.18.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA: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
Vulnerability Title
HumHub 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HumHub是HumHub开源的一套基于Yii PHP框架编写的开源社交网络软件。 HumHub 1.18.0版本存在跨站脚本漏洞，该漏洞源于Button组件中输出编码不一致，可能导致恶意脚本在用户浏览器环境中注入和执行。
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
II. Public POCs for CVE-2026-29048
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2026-29048 (2)
Vendor Advisories for CVE-2026-29048 (1)
-
XSS in Button component · Advisory · humhub/humhub · GitHub x_refsource_CONFIRM
Vendor Pages for CVE-2026-29048 (1)
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Release 1.18.1 · humhub/humhub · GitHub x_refsource_MISC
IV. Related Vulnerabilities
Same product: humhub
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CVE-2026-93769
HumHub 1.18.5 - Stored XSS in Profile Field Category title v -
CVE-2026-18430
HumHub 1.18.4 - Stored XSS in comment-deletion notifications -
CVE-2026-18756
HumHub Community Edition 1.18.4-pl1 - Reflected XSS in Space -
CVE-2026-18526
HumHub 1.18.4 / 1.18.4-pl1 – Stored Cross-Site Scripting in -
CVE-2026-47657
HumHub Missing Authorization on Remove All Space Members Act
Same vendor: humhub
-
CVE-2026-93769
HumHub 1.18.5 - Stored XSS in Profile Field Category title v -
CVE-2026-18430
HumHub 1.18.4 - Stored XSS in comment-deletion notifications -
CVE-2026-18756
HumHub Community Edition 1.18.4-pl1 - Reflected XSS in Space -
CVE-2026-18526
HumHub 1.18.4 / 1.18.4-pl1 – Stored Cross-Site Scripting in -
CVE-2026-47657
HumHub Missing Authorization on Remove All Space Members Act
Same weakness: CWE-79
-
CVE-2026-104313
WPC Estimated Delivery Date for WooCommerce <= 4.0.1 - Refle -
CVE-2026-93889
Mail logging <= 2.1.12 - Unauthenticated Stored Cross-Site S -
CVE-2026-93896
WPFront Notification Bar <= 3.5.1 - Reflected Cross-Site Scr -
CVE-2026-92974
Photo Gallery by 10Web <= 1.8.46 - Reflected Cross-Site Scri -
CVE-2026-103421
WPMobile.App <= 11.84 - Unauthenticated Stored Cross-Site Sc
V. Comments for CVE-2026-29048
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