Is this vulnerability remotely exploitable over the internet?

It can be, but typically only if an attacker can cause an administrator or privileged user to import a malicious archive, or if the import endpoint is exposed and insufficiently protected. The attack is generally one step removed, relying on compromised or misused admin privileges.

What level of access does an attacker need to exploit this issue?

Usually, the attacker needs the ability to supply an archive that the CTFd Admin import feature will process—this often means admin privileges, successful social engineering of an admin, or exploitation of another issue to hijack an admin session or API token.

What is the safest general fix pattern for this kind of vulnerability?

Enforce strict path validation when extracting archives: canonicalize each entry's path, confirm it stays within a predefined import directory, and reject any entry that attempts to traverse outside that directory or uses absolute paths.

Severity:

HIGH RISK

(7.5)

Path Traversal Zip Slip (CWE-23) in CTFd Admin Import Functionality

CVE-2026-30345

Published:

Mar 18, 2026

Status:

Deferred

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

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May 6, 2026

Vulnerability Type

Category:

Path Traversal / Zip Slip

CWE:

CWE-23

Impact:

Arbitrary File Write on Server

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Path Traversal / Zip Slip

CWE:

CWE-23

Impact:

Arbitrary File Write on Server

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

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Path Traversal Zip Slip (CWE-23) in CTFd Admin Import Functionality

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(8.6)

Server-Side Request Forgery (CWE-918) in OpenClaw Zalo Plugin sendPhoto

HIGH RISK

HIGH

(8.8)

Authorization Bypass (CWE-863) in OpenClaw Matrix Room Control Commands

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Ship clean & secure code faster

Ship clean & secure code faster

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