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CVE-2026-115341 progress software ws ftp server: Path traversal

7.7 highEPSS 0.4%

High (7.7) in progress software ws ftp server. EPSS 0.4% estimated probability of exploitation activity in the next 30 days.

On this page
Improper access restrictions in the Thin Client Web Transfer component of Progress Software WS_FTP Server versions prior to 2025.0.5 on Windows could allow an authenticated FTP user to access files outside their intended scope.

Severity

CVSS 3.1

7.7 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
EPSS
0.4% estimated probability of exploitation activity in the next 30 days; 36th percentile. Scored 2026-11-13. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: none · Automatable: no · Technical impact: partial, assessed 2026-11-09. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWEs
CWE-22 Improper Limitation of a Pathname to a Restricted Directory (Path traversal)
CWE-862 Missing Authorization
OWASP Top 10
A01:2025 Broken Access Control
Published
Modified
NVD analysis
Under analysis
Record from
the NVD, synced

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Affected

  • progress software:ws_ftp server

Versions

From the CNA's record in the CVE List.

ProductAffected
Progress Software WS_FTP Serverbefore 2025.0.5

Attack patterns (CAPEC)

  • CAPEC-665 Exploitation of Thunderbolt Protection Flaws Likelihood: Low · Severity: Very High
  • CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic Likelihood: High · Severity: High
  • CAPEC-76 Manipulating Web Input to File System Calls Likelihood: High · Severity: Very High
  • CAPEC-78 Using Escaped Slashes in Alternate Encoding Likelihood: High · Severity: High
  • CAPEC-79 Using Slashes in Alternate Encoding Likelihood: High · Severity: High
  • CAPEC-126 Path Traversal Likelihood: High · Severity: Very High

The attack patterns MITRE's CAPEC relates to this record's weaknesses, as MITRE names them. Credits.

References

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