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Vulnerability record · CVE-2025-53838 · published 8 September 2025

CVE-2025-53838: Linkace cross-site scripting vulnerability

Linkace · Linkace

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.

8.4 CVSS 4.0 High EPSS 0.27% · top 83.1% CWE-79 · Cross-site scripting
8.4CVSS 4.0 base score
0.27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 2 tagged exploit
17 Jun 2026Last modified by NVD

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/Kovah/LinkAce/commit/4da467a4b0fbb1650670e603f4449b8a47695631 Patch
https://github.com/Kovah/LinkAce/security/advisories/GHSA-vwmx-v9qf-q656 ExploitVendor Advisory
https://github.com/Kovah/LinkAce/security/advisories/GHSA-vwmx-v9qf-q656 ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

8.7CVE-2026-27458Linkace vulnerabilityLinkAce is a self-hosted archive to collect website links. Versions 2.4.2 and below have a Stored Cross-site Scripting vulnerability through the Atom…EPSS 0.26%8.7CVE-2025-62722Linkace cross-site scripting vulnerabilityLinkAce is a self-hosted archive to collect website links. In versions 2.3.1 and below, the social media sharing functionality contains a Stored Cros…EPSS 0.25%8.5CVE-2026-33953Linkace server-side request forgery (ssrf) vulnerabilityLinkAce is a self-hosted archive to collect website links. Versions prior to 2.5.3 block direct requests to private IP literals, but still performs s…EPSS 0.33%7.6CVE-2024-56508Linkace unrestricted file upload vulnerabilityLinkAce is a self-hosted archive to collect links of your favorite websites. Prior to 1.15.6, a file upload vulnerability exists in the LinkAce. This…EPSS 0.43%7.3CVE-2025-59424Linkace cross-site scripting vulnerabilityLinkAce is a self-hosted archive to collect website links. Prior to 2.3.1, a Stored Cross-Site Scripting (XSS) vulnerability has been identified on t…EPSS 0.34%7.1CVE-2025-62721Linkace information exposure vulnerabilityLinkAce is a self-hosted archive to collect website links. In versions 2.3.1 and below, authenticated RSS feed endpoints in the FeedController class …EPSS 0.37%7.1CVE-2025-62720Linkace information exposure vulnerabilityLinkAce is a self-hosted archive to collect website links. Versions 2.3.1 and below allow any authenticated user to export the entire database of lin…EPSS 0.37%6.5CVE-2026-33954Linkace improper authorization vulnerabilityLinkAce is a self-hosted archive to collect website links. In versions prior to 2.5.3, a private note attached to a non-private link can be disclosed…EPSS 0.38%

Source: NIST National Vulnerability Database (record CVE-2025-53838), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.