Read the docs
TI-2016-09372 Aliases CVE-2016-20100GHSA-322h-ww5h-3m7g

Memphis Documents Library plugin path traversal reads files

Priority HIGH 77CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-22 and the CVSS impact.

Summary

The Memphis Documents Library plugin for WordPress before 3.1.6 contains a path traversal flaw (CWE-22) in which traversal sequences in the mdocs-img-preview parameter are not restricted to the intended directory. An unauthenticated remote attacker can send GET requests to read arbitrary files, such as wp-config.php, which contains database credentials. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22, and a public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Memphis Documents Library plugin for WordPress before 3.1.6 contains a path traversal vulnerability that allows unauthenticated attackers to read arbitrary files via the mdocs-img-preview parameter. Attackers can send GET requests with traversal sequences to mdocs_img_preview() in mdocs-downloads.php to download wp-config.php containing database credentials. Exploitation evidence was first observed by the Shadowserver Foundation on 2023-10-22.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00528 44th percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by the CNA
Fix Fixed Memphis Documents Library (Ian Howatson): 3.1.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
Ian HowatsonMemphis Documents Library2.2.1 to before 3.1.63.1.6Patch availableCNA
  • Memphis Documents Library VendorIan Howatson Affected 2.2.1 to before 3.1.6 Fixed in 3.1.6 Patch available CNA

Remediation

Update Memphis Documents Library to version 3.1.6, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

  • Fix · CNA Memphis Documents Library (Ian Howatson) Fixed in 3.1.6

Timeline

  1. 2026-10-20 Threatist record created from CVE-2016-20100
  2. 2026-10-21 Alias added: GHSA-322h-ww5h-3m7g
  3. 2026-10-22 Priority changed: MEDIUM → LOW
  4. 2026-10-23 CISA SSVC decision points changed
  5. 2026-10-23 Priority changed: LOW → HIGH

References

Exploit 2

Advisory 1

Other 2

Sources

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