9.8
CRITICAL
CVE-2024-56521
TCPDF SSL Verification Bypass Vulewolf
Description

An issue was discovered in TCPDF before 6.8.0. If libcurl is used, CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER are set unsafely.

INFO

Published Date :

Dec. 27, 2024, 5:15 a.m.

Last Modified :

April 21, 2025, 3:25 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

3.9
Affected Products

The following products are affected by CVE-2024-56521 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Tcpdf_project tcpdf
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-56521.

URL Resource
https://github.com/tecnickcom/TCPDF/commit/aab43ab0a824e956276141a28a24c7c0be20f554 Product
https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 Patch
https://tcpdf.org Product

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-56521 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-56521 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Apr. 21, 2025

    Action Type Old Value New Value
    Added CWE CWE-295
    Added CPE Configuration OR *cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:* versions up to (excluding) 6.8.0
    Added Reference Type MITRE: https://github.com/tecnickcom/TCPDF/commit/aab43ab0a824e956276141a28a24c7c0be20f554 Types: Product
    Added Reference Type MITRE: https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 Types: Patch
    Added Reference Type MITRE: https://tcpdf.org Types: Product
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Mar. 24, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Feb. 18, 2025

    Action Type Old Value New Value
    Removed CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Dec. 31, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
  • New CVE Received by [email protected]

    Dec. 27, 2024

    Action Type Old Value New Value
    Added Description An issue was discovered in TCPDF before 6.8.0. If libcurl is used, CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER are set unsafely.
    Added CWE CWE-295
    Added Reference https://github.com/tecnickcom/TCPDF/commit/aab43ab0a824e956276141a28a24c7c0be20f554
    Added Reference https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0
    Added Reference https://tcpdf.org
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-56521 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-56521 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
© cvefeed.io
Latest DB Update: Apr. 22, 2025 18:54