THREATPORT/VULNERABILITY/CVE-2018-14028
HIGH SEVERITY

CVE-2018-14028

Wordpress vulnerability

CVSS
7.2
EPSS
17.9%
EPSS pct
97th
Exploited
No known
In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files. This allows for PHP files to be uploaded. Once a PHP file is uploaded, the plugin extraction fails, but the PHP file remains in a predictable wp-content/uploads location, allowing for an attacker to then execute the file. This represents a security risk in limited scenarios where an attacker (who does have the required capabilities for plugin uploads) cannot simply place arbitrary PHP code into a valid plugin ZIP file and upload that plugin, because a machine's wp-content/plugins directory permissions were set up to block all new plugins.
Affected vendor
Wordpress
Affected product
Wordpress
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-434 — Unrestricted Upload of File with Dangerous Type
Published
2018-08-10

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring high privileges, no user interaction. Successful exploitation leads to high impact to confidentiality, high impact to integrity, high impact to availability.

Its EPSS score of 17.9% reflects a moderate probability of exploitation activity in the wild over the next 30 days, placing it above 97% of all scored CVEs.

Check your external exposure to CVE-2018-14028

  • Confirm whether Wordpress Wordpress is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2018-14028.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2018-14028

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2018-14028 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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