CVE-2022-41343Public exploitNetwork attack vector

Remote file inclusion via nonhalting URI validation

Published Sep 25, 2022 · Updated May 22, 2025

Remote file inclusion in Dompdf before 2.0.1 allows remote attackers to load attacker-chosen font resources through @font-face rules. FontMetrics::registerFont records a warning after a font URI fails an allowed-protocol or resource-rule check, then continues processing it. The application must render attacker-controlled HTML or CSS; with PHP before 8.0 and a suitable PHAR gadget, the included file path enables code execution.

CVSS severity7.5
High
EPSS probability4.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote file inclusion in Dompdf before 2.0.1 allows remote attackers to load attacker-chosen font resources through @font-face rules. FontMetrics::registerFont records a warning after a font URI fails an allowed-protocol or resource-rule check, then continues processing it. The application must render attacker-controlled HTML or CSS; with PHP before 8.0 and a suitable PHAR gadget, the included file path enables code execution.

The record

CVE
CVE-2022-41343
Published
Sep 25, 2022
Updated
May 22, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-552, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 25, 2022CVE publishedPublication date reported by the CVE source.
  2. May 22, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-552Files or Directories Accessible to External Parties
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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