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Fencer Vulns
high 8.5

CVE-2025-59901 json

authenticated reflected XSS vulnerability in Sync Breeze Enterprise Server

published 2026-01-28 9 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-206502

cvss
8.5
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 9%
public exploits
0
none known

Summary

Disk Pulse Enterprise v10.4.18 has an authenticated reflected XSS vulnerability in the '/monitor_directory?sid=' endpoint, caused by insufficient validation of the 'monitor_directory' parameter sent by POST. An attacker could exploit this weakness to send malicious content to an authenticated user and steal information from their session.

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
9 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 4.0 8.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.5 CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/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

Affected products

  • Flexense Sync Breeze Enterprise Server
  • Flexense Disk Pulse Enterprise

Classification

Weakness
  • CWE-352 Cross-Site Request Forgery

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.