TI-2024-37408 Aliases CVE-2024-56521 GHSA-9mgx-552f-59p6

Improper certificate validation in Tecnick tcpdf

MEDIUM 50CWE-295Published 2024-12-27 · Updated 2025-03-24

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Spoofing
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-295.

Summary

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

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00785 56th percentileScored 2026-11-07

Fix Fixed tcpdf (tecnick): 6.8.0tecnickcom/tcpdf (Packagist): 6.8.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Tecnick	tcpdf	before 6.8.0	6.8.0	Patch available	CNA
—	tecnickcom/tcpdf (Packagist)	before 6.8.0	6.8.0	Patch available	GHSA-9mgx-552f-59p6

tcpdf VendorTecnick Affected before 6.8.0 Fixed in 6.8.0 Patch available CNA
tecnickcom/tcpdf (Packagist) Vendor— Affected before 6.8.0 Fixed in 6.8.0 Patch available GHSA-9mgx-552f-59p6

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:tcpdf_project:tcpdf::::::::	before 6.8.0	Vulnerable	Tcpdf Project

cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:* Versions before 6.8.0 Vulnerable ·Tcpdf Project

Remediation

Fix · CNA tcpdf (tecnick) Fixed in 6.8.0
Fix · GHSA-9mgx-552f-59p6 tecnickcom/tcpdf (Packagist) Fixed in 6.8.0 Advisory →

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2024-12-27
tecnick tcpdf 6.8.0
5 records Highest priority Priority MEDIUM 4 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2024-37414 Cross-site scripting in Tecnick tcpdfPriority MEDIUM 40
- TI-2024-37409 Type confusion in Tecnick tcpdfPriority MEDIUM 40
- TI-2024-37406 Cross-site scripting in Tecnick tcpdfPriority MEDIUM 40
Show all 5 records →

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product

Red Hat

Timeline

2026-10-02 Threatist record created from CVE-2024-56521
2026-10-03 Alias added: GHSA-9mgx-552f-59p6

References

Patch 1

https://github.com/tecnickcom/TCPDF/compare/6.7.8...6.8.0

Advisory 1

https://nvd.nist.gov/vuln/detail/CVE-2024-56521

Other 3

TI-2018-12189 An issue was discovered in TCPDF before 6.2.22. CVSS 3.0CRITICAL 9.8
TI-2026-03616 Tecnick TCExam Group tce_edit_group.php cross site scripting CVSS 4.0MEDIUM 4.8
TI-2024-32179 Tecnick TCExam – CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') CVSS 3.1CRITICAL 9.8
TI-2021-03414 When installed following the default/recommended settings, TCExam <= 14.8.1 allowed… CVSS 3.1HIGH 7.5
TI-2025-16961 Tecnick – CWE-89: Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') CVSS 3.1HIGH 8.8
TI-2024-37414 Cross-site scripting in Tecnick tcpdf CVSS 3.1HIGH 7.5

See all 36 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences