XSS in Rejetto Hfs
CVE-2026-61501
Rejetto HFS 3.0.0 through 3.2.0 renders log entries in the administration panel as HTML without sanitization. A remote unauthenticated attacker can submit a failed login with a crafted username that is written to the error log and executes JavaScript in an administrator's browser when the logs are viewed, allowing the attacker to create accounts or execute code on the server with the administrator's privileges.
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: 0.004 (34.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 34th percentile — 34.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Rejetto Hfs — versions 3.0.0
Weakness classification (CWE)
References
- hfs v3.2.1 Release Notes (release-notes, patch)
- www.vulncheck.com/advisories/rejetto-hfs-stored-xss-in-admin-log-viewer (third-party-advisory)
Frequently asked questions
- What is CVE-2026-61501?
- CVE-2026-61501 is a medium-severity vulnerability in Rejetto Hfs, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2026-07-13.
- How severe is CVE-2026-61501?
- Medium severity. CVSS v3 base score is 6.1 out of 10.