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CVE-2024-56527

22
FAUCET Score

CVE-2024-56527 is a high-severity vulnerability affecting TCPDF versions prior to 6.8.0, where the Error function fails to properly sanitize error messages using htmlspecialchars. This oversight could lead to a Cross-Site Scripting (XSS) vulnerability (CWE-79). The vulnerability has a CVSS score of 7.5, indicating a high potential for impact, specifically denial of service (A:H), and can be exploited remotely without user interaction (AV:N/UI:N). There is currently no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 6.8.0CPE matchmatch criteria
cpe:2.3:a:tcpdf_project:tcpdf:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.77%
Probability of exploitation in next 30 days
EPSS Percentile
51.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0077 is in the 27th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

composerpatch availablevia ghsa
Product: tecnickcom/tcpdfFixed in: 6.8.0
github_advisorypatch availablevia nvd_reference
View patch

Vendor Advisories (1)

composerGHSA-qx95-cwh6-9mvqmedium

TCPDF missing character escape on error messages

Dec 27, 2024

References

lists.debian.org / debian-lts-announce/2025/06/msg00004.html
andrea0.medium.com / analysis-of-cve-2024-56527-dbdab6962add
ExploitThird Party Advisory
github.com / tecnickcom/TCPDF/commit/11778aaa2d9e30a9ae1c1ee97ff349344f0ad6e1
Patch
github.com / tecnickcom/TCPDF/compare/6.7.8...6.8.0
Issue Tracking
tcpdf.org
Product