CVE-2024-32489Network attack vector

Cross-site scripting via unrestricted HTML method calls

Published Apr 15, 2024 · Updated Nov 3, 2025

Cross-site scripting in TCPDF before 6.7.4 allows remote attackers to alter downstream content through crafted HTML input. With TCPDF HTML calls enabled, openHTMLTagHandler accepts a method name from a tcpdf tag and invokes any existing TCPDF method without an allowlist. Exploitation requires an embedding application to enable the feature, process attacker-controlled HTML, and expose generated content to another user.

CVSS severity5.3
Medium
EPSS probability0.58%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in TCPDF before 6.7.4 allows remote attackers to alter downstream content through crafted HTML input. With TCPDF HTML calls enabled, openHTMLTagHandler accepts a method name from a tcpdf tag and invokes any existing TCPDF method without an allowlist. Exploitation requires an embedding application to enable the feature, process attacker-controlled HTML, and expose generated content to another user.

The record

CVE
CVE-2024-32489
Published
Apr 15, 2024
Updated
Nov 3, 2025
Vendor
Tecnick.com LTD
Product
TCPDF
Classifications
CWE-79, CWE-80
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 3, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <6.7.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Tecnick.com LTD · TCPDFversion=0 <6.7.4

Published CVSS scores

5.3GitHub Advisory DatabaseCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
6.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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