---
id: CVE-2026-119364
title: ProFTPD through 1.3.9e and 1.3.10rc4 mod_copy Symlink Following Write Bypass
summary: >-
  ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a
  link-following vulnerability in mod_copy that allows authenticated FTP users
  to bypass Limit WRITE restrictions via symlinks. Attackers can place a symlink
  in a writable d…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N'
cvssSource: cna
cwe:
  - CWE-59
vendor: ProFTPD Project
product: ProFTPD
affected:
  - ProFTPD <= 1.3.9e
  - ProFTPD >= 1.3.10rc1 < 1.3.10rc5
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-10-30T15:20:52.024825Z'
published: '2026-10-30'
updated: '2026-10-30'
sourceUpdated: '2026-10-30T15:56:45.622Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-119364'
references:
  - url: 'https://github.com/proftpd/proftpd/issues/2374'
  - url: >-
      https://github.com/proftpd/proftpd/commit/c41691f8981f98081fcb8a535c3c21b06a3f04af
  - url: 'https://github.com/proftpd/proftpd/blob/v1.3.9e/contrib/mod_copy.c#L620'
  - url: 'https://github.com/proftpd/proftpd/releases/tag/v1.3.10rc5'
    label: ProFTPD v1.3.10rc5 Release Notes
  - url: 'https://abraxaslabs.tech/research/proftpd-site-copy-dest-follow'
  - url: 'https://github.com/proftpd/proftpd'
  - url: >-
      https://www.vulncheck.com/advisories/proftpd-through-1.3-9e-and-1.3-10rc4-mod-copy-symlink-following-write-bypass
    label: >-
      VulnCheck Advisory: ProFTPD through 1.3.9e and 1.3.10rc4 mod_copy Symlink
      Following Write Bypass
tags:
  - cve.org
epss: 0.00465
epssPercentile: 0.40379
ingestedAt: '2026-11-05T16:24:31.041Z'
---

## Overview

ProFTPD through 1.3.9e and 1.3.10rc1 through 1.3.10rc4 contains a link-following vulnerability in mod_copy that allows authenticated FTP users to bypass Limit WRITE restrictions via symlinks. Attackers can place a symlink in a writable directory and use SITE COPY or SITE CPTO to overwrite files in write-denied locations.

## Affected

- `ProFTPD <= 1.3.9e`
- `ProFTPD >= 1.3.10rc1 < 1.3.10rc5`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.