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CVE-2026-115338— Insecure XFT Transport in Progress WS_FTP Server

Quick assessment

Affected

Progress Software WS_FTP Server

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 2025.0.5 版本之前的 Progress WS_FTP Server 中，通信保护不足，若使用未加密连接，网络攻击者可能截获敏感信息或篡改请求。

CVSS 8.1 · High Updated Nov 10, 2026

Possible ATT&CK Techniques 1 AI

T1571 · Non-Standard Port

Affected Version Matrix 1

Vendor	Product	Version Range	Status
Progress Software	WS_FTP Server	`< 2025.0.5`	affected

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Vulnerability Information

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Vulnerability Title

Insecure XFT Transport in Progress WS_FTP Server

Source: CVE Program / CVE List V5

Vulnerability Description

Insufficient protection of communications in Progress WS_FTP Server versions prior to 2025.0.5 could allow a network attacker to intercept sensitive information or modify requests when unencrypted connections are used.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

敏感数据的明文传输

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Progress Software	WS_FTP Server	0 ~ 2025.0.5	-

II. Public POCs for CVE-2026-115338

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-115338

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Other References for CVE-2026-115338 (1)

https://community.progress.com/s/article/WS-FTP-Server-Service-Pack-November-2026 vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-115338

Same Patch Batch · Progress Software · 2026-11-09 · 6 CVEs total

CVE-2026-115341	7.7 HIGH	Unauthorized File Disclosure via Path Traversal in Thin Client Web Transfer in Progress WS
CVE-2026-115339	7.5 HIGH	Unauthenticated XFT Memory Exhaustion in Progress WS_FTP Server
CVE-2026-115340	7.1 HIGH	Insecure Storage of Web Transfer Credentials in Progress WS_FTP Server
CVE-2026-115336	6.5 MEDIUM	FTP Quota Accounting Bypass in Progress WS_FTP Server
CVE-2026-115337	6.3 MEDIUM	Folder Permission Bypass in Progress WS_FTP Server

IV. Related Vulnerabilities

Same product: WS_FTP Server

Same vendor: Progress Software

Same weakness: CWE-319