CVE-2025-53838
LinkAce has a Stored One Click XSS 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.
INFO
Published Date :
Sept. 8, 2025, 8:15 p.m.
Last Modified :
Oct. 6, 2025, 3:02 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update LinkAce to version 2.1.9 or later.
- Review and sanitize all user-supplied link data.
- Implement strict input validation for link attributes.
- Ensure proper output encoding for all dynamic content.
Public PoC/Exploit Available at Github
CVE-2025-53838 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-53838.
| URL | Resource |
|---|---|
| https://github.com/Kovah/LinkAce/commit/4da467a4b0fbb1650670e603f4449b8a47695631 | Patch |
| https://github.com/Kovah/LinkAce/security/advisories/GHSA-vwmx-v9qf-q656 | Exploit Vendor Advisory |
| https://github.com/Kovah/LinkAce/security/advisories/GHSA-vwmx-v9qf-q656 | Exploit Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-53838 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-53838
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-53838 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-53838 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Oct. 06, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Added CPE Configuration OR *cpe:2.3:a:linkace:linkace:*:*:*:*:*:*:*:* versions up to (excluding) 2.1.9 Added Reference Type GitHub, Inc.: https://github.com/Kovah/LinkAce/commit/4da467a4b0fbb1650670e603f4449b8a47695631 Types: Patch Added Reference Type GitHub, Inc.: https://github.com/Kovah/LinkAce/security/advisories/GHSA-vwmx-v9qf-q656 Types: Exploit, Vendor Advisory Added Reference Type CISA-ADP: https://github.com/Kovah/LinkAce/security/advisories/GHSA-vwmx-v9qf-q656 Types: Exploit, Vendor Advisory -
New CVE Received by [email protected]
Sep. 08, 2025
Action Type Old Value New Value Added 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. Added CVSS V4.0 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:X/V:X/RE:X/U:X Added CWE CWE-79 Added Reference https://github.com/Kovah/LinkAce/commit/4da467a4b0fbb1650670e603f4449b8a47695631 Added Reference https://github.com/Kovah/LinkAce/security/advisories/GHSA-vwmx-v9qf-q656 -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 08, 2025
Action Type Old Value New Value Added Reference https://github.com/Kovah/LinkAce/security/advisories/GHSA-vwmx-v9qf-q656