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TI-2015-02923 Aliases CVE-2015-3306GHSA-4mfj-5wr8-x32q

Access control flaw in ProFTPD mod_copy allows arbitrary file access

Priority CRITICAL 100Exploited in the wildCWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.

Summary

ProFTPD 1.3.5 is affected through its mod_copy module. Improper access control (CWE-284) lets remote attackers read and write arbitrary files. The attacker needs no credentials or user interaction. CISA lists it in its Known Exploited Vulnerabilities catalog with a date added of 2026-10-08, and a public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

The mod_copy module in ProFTPD 1.3.5 allows remote attackers to read and write to arbitrary files via the site cpfr and site cpto commands.

Why it matters now

Exploitation Active In CISA KEV since 2026-10-08CISA due date 2026-10-11
EPSS 0.99497 99th percentileScored 2026-11-07
Public exploit Yes 5 exploit referencesTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Active
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 10

CPEVersionsRoleVendor
cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:*20VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:*21VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*22VulnerableFedoraproject
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*7.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*8.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:opensuse:tumbleweed:-:*:*:*:*:*:*:*not specified by NVDVulnerableopenSUSE
cpe:2.3:o:suse:linux_enterprise_server:15:sp7:*:*:-:-:*:*15 sp7VulnerableSUSE
cpe:2.3:o:suse:linux_enterprise_server:15:sp7:*:*:-:sap:*:*15 sp7VulnerableSUSE
cpe:2.3:a:proftpd:proftpd:1.3.5:*:*:*:*:*:*:*1.3.5VulnerableProFTPD
  • cpe:2.3:o:fedoraproject:fedora:20:*:*:*:*:*:*:* Versions 20 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:21:*:*:*:*:*:*:* Versions 21 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:* Versions 22 Vulnerable ·Fedoraproject
  • cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:opensuse:tumbleweed:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·openSUSE
  • cpe:2.3:o:suse:linux_enterprise_server:15:sp7:*:*:-:-:*:* Versions 15 sp7 Vulnerable ·SUSE
  • cpe:2.3:o:suse:linux_enterprise_server:15:sp7:*:*:-:sap:*:* Versions 15 sp7 Vulnerable ·SUSE
  • cpe:2.3:a:proftpd:proftpd:1.3.5:*:*:*:*:*:*:* Versions 1.3.5 Vulnerable ·ProFTPD

Remediation

The sources list no fixed version for ProFTPD. CISA requires U.S. federal agencies to fix it by 2026-10-11.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-3306
  2. 2026-10-03 Alias added: GHSA-4mfj-5wr8-x32q
  3. 2026-10-08 Added to CISA KEV
  4. 2026-10-08 CVSS score added · CISA ADP
  5. 2026-10-08 Weakness changed · CISA ADP
  6. 2026-10-08 CISA SSVC decision points changed
  7. 2026-10-09 CISA SSVC decision points changed
  8. 2026-10-10 CISA SSVC decision points changed

References

Exploit 5

Advisory 7

  • TI-2010-03974 Multiple stack-based buffer overflows in the pr_netio_telnet_gets function in netio.c in… CVSS 2.0HIGH 10.0
  • TI-2010-05061 ProFTPD 1.3.3c Backdoor Command Execution CVSS 4.0CRITICAL 9.3
  • TI-2019-09597 An arbitrary file copy vulnerability in mod_copy in ProFTPD up to 1.3.5b allows for… CVSS 3.1CRITICAL 9.8
  • TI-2026-30493 SQL injection in ProFTPD CVSS 3.1HIGH 8.1
  • TI-2023-26623 The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6… CVSS 3.1MEDIUM 5.9
  • TI-2011-03647 Use-after-free vulnerability in the Response API in ProFTPD before 1.3.3g allows remote… CVSS 2.0HIGH 9.0
See all 32 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences