CVE-2022-0085Network attack vector

Internal requests via followed HTTP redirects

Published Jun 28, 2022 · Updated Aug 2, 2024

SSRF in dompdf before 2.0.0 allows remote attackers to send requests to protected internal systems through crafted HTML. The remote-resource loader passes HTTP and HTTPS URLs to file_get_contents with redirect following enabled, so an allowed external URL can redirect the server to a blocked internal address. Exploitation requires control of rendered HTML, isRemoteEnabled and allow_url_fopen enabled, and an integration that filters only the initial URL.

CVSS severity5.3
Medium
EPSS probability1.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in dompdf before 2.0.0 allows remote attackers to send requests to protected internal systems through crafted HTML. The remote-resource loader passes HTTP and HTTPS URLs to file_get_contents with redirect following enabled, so an allowed external URL can redirect the server to a blocked internal address. Exploitation requires control of rendered HTML, isRemoteEnabled and allow_url_fopen enabled, and an integration that filters only the initial URL.

The record

CVE
CVE-2022-0085
Published
Jun 28, 2022
Updated
Aug 2, 2024
Vendor
dompdf
Product
dompdf
Classifications
CWE-918, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=unspecified <2.0.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

dompdf · dompdfversion=unspecified <2.0.0

Published CVSS scores

5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/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.

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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-918Server-Side Request Forgery (SSRF)
T1190Exploit Public-Facing Application

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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