THREATPORT/VULNERABILITY/CVE-2023-31689
CRITICAL SEVERITY

CVE-2023-31689

Wcms vulnerability

CVSS
9.8
EPSS
20.2%
EPSS pct
97th
Exploited
No known
In Wcms 0.3.2, an attacker can send a crafted request from a vulnerable web application backend server /wcms/wex/html.php via the finish parameter and the textAreaCode parameter. It can write arbitrary strings into custom file names and upload any files, and write malicious code to execute scripts to trigger command execution.
Affected vendor
Wcms
Affected product
Wcms
CVSS vector
CVSS:3.1/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
2023-05-22

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 20.2% 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-2023-31689

  • Confirm whether Wcms Wcms is running on any internet-facing host or subdomain.
  • Match discovered service fingerprints against the version affected by CVE-2023-31689.
  • Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2023-31689

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2023-31689 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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