XSS in Slinkapp Slink
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.
Vulnerability class: XSS (Cross-Site Scripting)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.003 (17.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 17th percentile — 17.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Slinkapp Slink — versions 1.4.9, 1.5.1, 1.6.3
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/G3XAR/Vulnerability-Research/tree/main/Slink (up to 1.6.3)/PoC (Broken Link)
- github.com/G3XAR/Vulnerability-Research/tree/main/CVE-2025-55944 (Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2025-55944?
- CVE-2025-55944 is a medium-severity vulnerability in Slinkapp Slink, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2025-09-03.
- How severe is CVE-2025-55944?
- Medium severity. CVSS v3 base score is 6.1 out of 10.
- Is CVE-2025-55944 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.