THREATPORT/VULNERABILITY/CVE-2017-16949
CRITICAL SEVERITY

CVE-2017-16949

Anonymous Post Pro vulnerability

CVSS
9.8
EPSS
19.2%
EPSS pct
97th
Exploited
No known
An issue was discovered in the AccessKeys AccessPress Anonymous Post Pro plugin through 3.1.9 for WordPress. Improper input sanitization allows the attacker to override the settings for allowed file extensions and upload file size, related to inc/cores/file-uploader.php and file-uploader/file-uploader-class.php. This allows the attacker to upload anything they want to the server, as demonstrated by an action=ap_file_upload_action&allowedExtensions[]=php request to /wp-admin/admin-ajax.php that results in a .php file upload and resultant PHP code execution.
Affected vendor
Accesspressthemes
Affected product
Anonymous Post Pro
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness type (CWE)
  • CWE-434 — Unrestricted Upload of File with Dangerous Type
Published
2017-12-19

Risk analysis

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

Its EPSS score of 19.2% 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-2017-16949

  • Confirm whether Accesspressthemes Anonymous Post Pro is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2017-16949.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2017-16949

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2017-16949 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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