Drupal PanKM RCE via Unrestricted File Upload CVE-2026-16646
CVE-2026-16646 Published on August 25, 2026

PanKM - Critical - Unsupported - SA-CONTRIB-2026-083
Vulnerability in Drupal PanKM. This issue affects PanKM versions: *.*.

NVD

Vulnerability Analysis

CVE-2026-16646 is exploitable with network access, requires user interaction and user privileges. This vulnerability is consided to have a high level of attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and no impact on availability.

Attack Vector:
NETWORK
Attack Complexity:
HIGH
Privileges Required:
HIGH
User Interaction:
REQUIRED
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
NONE

Weakness Type

Missing Authentication for Critical Function

The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.


Affected Versions

Drupal PanKM Version *.* is affected by CVE-2026-16646

Exploit Probability

EPSS
0.17%
Percentile
5.32%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.