peter bassill · operator
$ cve CVE-2018-13415 JSON

CVE-2018-13415 EXPLOIT

9.8
CRITICAL · CVSS 3.0 · EPSS 31.8% (pctl 98)

Patch early

A public exploit exists.

Description

In Plex Media Server 1.13.2.5154, the XML parsing engine for SSDP/UPnP functionality is vulnerable to an XML External Entity Processing (XXE) attack. Remote, unauthenticated attackers can use this vulnerability to: (1) Access arbitrary files from the filesystem with the same permission as the user account running Plex, (2) Initiate SMB connections to capture a NetNTLM challenge/response and crack to cleartext password, or (3) Initiate SMB connections to relay a NetNTLM challenge/response and achieve Remote Command Execution in Windows domains.

Scoring

CVSS9.8 (CRITICAL, v3.0)
VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS31.81% — more likely to be exploited than 98% of all CVEs
WeaknessCWE-611
On CISA KEVno
Public exploityes
Published2018-08-13
Last modified2026-06-17

Affected (1)

VendorProduct
plexmedia server

Public exploits

References

→ the Explorer  ·  watch your stack  ·  NVD