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Vulnerability · Published Mar 21, 2026 · Assigned by VulDB

CVE-2026-4509PbootCMS File Upload file.php incomplete blacklist

Medium 6.3

In plain English

A medium-severity security flaw in PbootCMS. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 22% of all known vulnerabilities).

Severity (CVSS 3.1)6.3Medium
Exploit odds (30 days)0.3%top 77.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A security flaw has been discovered in PbootCMS up to 3.2.12. This affects an unknown function of the file core/function/file.php of the component File Upload. The manipulation of the argument black results in incomplete blacklist. The attack may be launched remotely. The exploit has been released to the public and may be used for attacks.

Affected products (as reported)

VendorProductVersions
n/a PbootCMS 3.2.03.2.13.2.23.2.33.2.43.2.53.2.63.2.7

Weakness: CWE-184, CWE-183 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References