VulnTideExploited vulnerabilities, by vendor. Data as of .
Not in CISA KEVPublished CVSS 5.1 mediumEPSS 0.2% probability of exploitation in 30 daysFound by AI: Anthropic (Claude)
Rejetto

CVE-2026-61504: Rejetto HFS < 3.2.1 Stored XSS via File Names in Basic Web Listing

Is it exploited?

Not on CISA's list. CISA has not added it to the Known Exploited Vulnerabilities catalog as of . If CISA adds it, this page shows it as known exploited.

How likely is exploitation in the next 30 days?
0.2%

EPSS score, percentile 14.4 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?
5.1 Medium

CVSS v4.0 base score, given by the CNA

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (1)

Which versions are affected?

Affected

  • from 3.0.0 to before 3.2.1

Versions by product

Source: CISA KEV 2026.10.29, as of ; FIRST EPSS, as of ; CVE List, as of . About the data.

What to do

Advisories and patches

This summary is based on the CVE record as of . Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

As listed in the CVE record.

rejetto hfs
StatusVersions
Affectedfrom 3.0.0 to before 3.2.1

Versions not listed are: affected.

Source: CVE List, as of . About the data.

About this vulnerability

Rejetto HFS 3.0.0 through 3.2.0 does not escape file names in its fallback "basic" web listing, and this listing can be forced by any browser via the ?get=basic parameter. A user with upload permission - or an anonymous user on servers with an open upload folder - can store a file whose name contains script that executes in the browser of anyone viewing the listing.

Summary: CVE record, as of .

  • CISA has not added CVE-2026-61504 to its Known Exploited Vulnerabilities (KEV) catalog, as of 29 Oct 2026.
  • The CVE record was published on 13 Jul 2026.
  • The CVE record carries a CVSS v4.0 base score of 5.1 (Medium), given by its CNA.
  • FIRST's EPSS model puts the probability of exploitation in the next 30 days at 0.2% (percentile 14.4), as of 29 Oct 2026. EPSS is a statistical estimate, not a report of exploitation.
  • CISA's SSVC assessment in the CVE record: exploitation none, automatable no, technical impact partial.
  • The credits in the CVE record name Anthropic (Claude) as finder.

Source: CISA KEV 2026.10.29, as of ; CVE List, as of ; FIRST EPSS, as of . About the data.

Description

Rejetto HFS < 3.2.1 Stored XSS via File Names in Basic Web Listing

Rejetto HFS 3.0.0 through 3.2.0 does not escape file names in its fallback "basic" web listing, and this listing can be forced by any browser via the ?get=basic parameter. A user with upload permission - or an anonymous user on servers with an open upload folder - can store a file whose name contains script that executes in the browser of anyone viewing the listing.

Source: CVE List, as of . About the data.

Weakness

CWE-79

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record.

Timeline

DateEvent
CVE record published
CVE record last updated

References

1

Known exploited Rejetto vulnerabilities

  • CVE-2024-23692: Rejetto HTTP File Server Improper Neutralization of Special Elements Used in a Template Engine Vulnerability (added )
  • CVE-2014-6287: Rejetto HTTP File Server (HFS) Remote Code Execution Vulnerability (added )