Is CVE-2023-30333 actively exploited?

No active exploitation of CVE-2023-30333 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2023-30333 be exploited remotely?

Yes. CVE-2023-30333 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2023-30333?

CVE-2023-30333 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2023-30333

CWE-434Published: May 18, 2023· Updated: Jun 17, 2026

9.8

CVSS v3.1

Official Description

An arbitrary file upload vulnerability in the component /admin/ThemeController.java of PerfreeBlog v3.1.2 allows attackers to execute arbitrary code via a crafted file.

NVD Source

Risk Analysis

PerfreeBlog contains an arbitrary file upload vulnerability in its ThemeController component. This critical flaw allows unauthenticated remote attackers to execute arbitrary code by uploading a crafted file.

No public exploit is currently known, and the vulnerability is not listed in CISA's KEV. It is remotely exploitable with low attack complexity.

Recommended Action

Upgrade PerfreeBlog to a version beyond 3.1.2. Implement strict file type validation on the server to prevent unauthorized uploads.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-30333 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.