CVE-2025-55944: slink XSS — Exploit

Description

Slink v1.4.9 allows stored cross-site scripting (XSS) via crafted SVG uploads. When a user views the shared image in a new browser tab, the embedded JavaScript executes. The issue affects both authenticated and unauthenticated users.

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CVSS v3.1 Score

6.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Weakness Type (CWE)

CWE-79 Cross-site Scripting (XSS)

Affected Products

Vendor	Product	Versions
slinkapp	slink	All
slinkapp	slink	All
slinkapp	slink	All

References

Exploits

https://github.com/G3XAR/Vulnerability-Research/tree/main/CVE-2025-55944

Other References

https://github.com/G3XAR/Vulnerability-Research/tree/main/Slink%20%28up%20to%201.6.3%29/PoC

Frequently Asked Questions

What is CVE-2025-55944? +

Slink v1.4.9 allows stored cross-site scripting (XSS) via crafted SVG uploads. When a user views the shared image in a new browser tab, the embedded JavaScript executes. The issue affects both authenticated and unauthenticated users. It has a CVSS v3.1 base score of 6.1 (MEDIUM).

How severe is CVE-2025-55944? +

CVE-2025-55944 has a CVSS v3.1 score of 6.1 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-55944? +

CVE-2025-55944 affects products from slinkapp, specifically: slink. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-55944? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2025-55944