CVE-2024-56527
TCPDF Unvalidated Error Message Vulnerability
Description
An issue was discovered in TCPDF before 6.8.0. The Error function lacks an htmlspecialchars call for the error message.
INFO
Published Date :
Dec. 27, 2024, 6:15 a.m.
Last Modified :
Nov. 3, 2025, 8:16 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source | 
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | 
Solution
- Update the TCPDF package.
 - Upgrade the php-tcpdf packages.
 
Public PoC/Exploit Available at Github
                                            CVE-2024-56527 has a 1 public
                                            PoC/Exploit available at Github.
                                            Go to the Public Exploits tab to see the list.
                                        
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-2024-56527.
                                        
| URL | Resource | 
|---|---|
| https://andrea0.medium.com/analysis-of-cve-2024-56527-dbdab6962add | Exploit Third Party Advisory | 
| https://github.com/tecnickcom/TCPDF/commit/11778aaa2d9e30a9ae1c1ee97ff349344f0ad6e1 | Patch | 
| https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 | Issue Tracking | 
| https://tcpdf.org | Product | 
| https://lists.debian.org/debian-lts-announce/2025/06/msg00004.html | 
CWE - Common Weakness Enumeration
            While CVE identifies
            specific instances of vulnerabilities, CWE categorizes the common flaws or
            weaknesses that can lead to vulnerabilities. CVE-2024-56527 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-2024-56527
            weaknesses.
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).
EPSS & VEDAS Score Aggregator for CVEs
cve vulnerability exploit epss vedas exploit-maturity
Results are limited to the first 15 repositories due to potential performance issues.
			The following list is the news that have been mention
			CVE-2024-56527 vulnerability anywhere in the article.
		
                The following table lists the changes that have been made to the
                CVE-2024-56527 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.
- 
                            
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 03, 2025
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2025/06/msg00004.html  - 
                            
Initial Analysis by [email protected]
Apr. 17, 2025
Action Type Old Value New Value Added CWE CWE-79 Added CPE Configuration OR *cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:* versions up to (excluding) 6.8.0 Added Reference Type MITRE: https://andrea0.medium.com/analysis-of-cve-2024-56527-dbdab6962add Types: Exploit, Third Party Advisory Added Reference Type MITRE: https://github.com/tecnickcom/TCPDF/commit/11778aaa2d9e30a9ae1c1ee97ff349344f0ad6e1 Types: Patch Added Reference Type MITRE: https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 Types: Issue Tracking Added Reference Type MITRE: https://tcpdf.org Types: Product  - 
                            
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 13, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N/A:N  - 
                            
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Dec. 28, 2024
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N  - 
                            
CVE Modified by [email protected]
Dec. 27, 2024
Action Type Old Value New Value Added CWE CWE-79 Added Reference https://andrea0.medium.com/analysis-of-cve-2024-56527-dbdab6962add  - 
                            
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. The Error function lacks an htmlspecialchars call for the error message. Added Reference https://github.com/tecnickcom/TCPDF/commit/11778aaa2d9e30a9ae1c1ee97ff349344f0ad6e1 Added Reference https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0 Added Reference https://tcpdf.org