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Fencer Vulns
high 7.5

CVE-2024-56527 json

TCPDF missing character escape on error messages

published 2024-12-27 22 mo ago modified 2026-06-17 4 mo ago also GHSA-qx95-cwh6-9mvq , EUVD-2024-3609

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

An issue was discovered in TCPDF before 6.8.0. The Error function lacks an htmlspecialchars call for the error message.

Patch / fix

  • packagist tecnickcom/tcpdf 6.8.0
  • tecnick tcpdf 6.8.0
  • tcpdf Debian 12 6.6.2+dfsg1-1+deb12u1
  • tcpdf Debian 14, Debian 13 6.8.0+dfsg-1

debian advisories DEBIAN-CVE-2024-56527

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-56527 updated

TCPDF: Error function lacks an htmlspecialchars call for the error message.

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
22 mo ago

Exploit prediction

0.76% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • andrea0.medium.com https://andrea0.medium.com/analysis-of-cve-2024-56527-dbdab6962add referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected packages

ecosystem package affected fixed in
packagist tecnickcom/tcpdf
<6.8.0
6.8.0

Affected products

  • tecnick tcpdf

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.