CVE-2025-53838— LinkAce has a Stored One Click XSS vulnerability
Quick assessment
Affected
Kovah LinkAce
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.
LinkAce是Kevin Woblick个人开发者的一个自托管档案库，用于收集您最喜爱的网站的链接。 LinkAce 2.1.9之前版本存在跨站脚本漏洞，该漏洞源于存储型跨站脚本攻击，可能导致任意脚本执行。
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I. Basic Information for CVE-2025-53838
Vulnerability Information
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Vulnerability Title
LinkAce has a Stored One Click XSS vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
LinkAce is a self-hosted archive to collect website links. A stored cross-site scripting (XSS) vulnerability was discovered in versions prior to 2.1.9 that allows an attacker to inject arbitrary JavaScript, which is then executed in the context of a user's browser when the malicious link is clicked. This is a one-click XSS, meaning the victim only needs to click a crafted link — no further interaction is required. The application contains a stored XSS vulnerability due to insufficient filtering and escaping of user-supplied data inserted into link attributes. Malicious JavaScript code can be saved in the database along with the link and executed in the user’s browser when clicking the link, leading to arbitrary script execution within the context of the site. Version 2.1.9 fixes the issue.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/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
LinkAce 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LinkAce是Kevin Woblick个人开发者的一个自托管档案库，用于收集您最喜爱的网站的链接。 LinkAce 2.1.9之前版本存在跨站脚本漏洞，该漏洞源于存储型跨站脚本攻击，可能导致任意脚本执行。
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-2025-53838
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IV. Related Vulnerabilities
Same product: LinkAce
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CVE-2026-49436
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LinkAce - Stored XSS via Unsanitized SSO User's Name Rendere -
CVE-2026-45344
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CVE-2026-40905
LinkAce: Password Reset Poisoning via X-Forwarded-Host Heade
Same vendor: Kovah
-
CVE-2026-49436
LinkAce vulnerable to stored XSS via 'javascript:' URI in Bu -
CVE-2026-45342
LinkAce: IDOR in Update Policies Allows Any Authenticated Us -
CVE-2026-45343
LinkAce - Stored XSS via Unsanitized SSO User's Name Rendere -
CVE-2026-45344
LinkAce: Setup database password newline injection enables p -
CVE-2026-40905
LinkAce: Password Reset Poisoning via X-Forwarded-Host Heade
Same weakness: CWE-79
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V. Comments for CVE-2025-53838
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