CVE-2026-59552Network attack vector

Unauthenticated internal network access via PDF proxy

Published Jul 27, 2026 · Updated Jul 27, 2026

SSRF in Shahadat Hossain 3D Flipbook PDF Viewer & Embedder 1.4.2 and earlier allows remote attackers to access internal network services. The unauthenticated PDF proxy endpoint forwards an attacker-supplied URL without excluding internal or private network addresses or verifying a PDF response. A reachable WordPress site with the plugin active is sufficient; the server can issue requests into network locations unavailable to the attacker.

CVSS severity7.2
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SSRF in Shahadat Hossain 3D Flipbook PDF Viewer & Embedder 1.4.2 and earlier allows remote attackers to access internal network services. The unauthenticated PDF proxy endpoint forwards an attacker-supplied URL without excluding internal or private network addresses or verifying a PDF response. A reachable WordPress site with the plugin active is sufficient; the server can issue requests into network locations unavailable to the attacker.

The record

CVE
CVE-2026-59552
Published
Jul 27, 2026
Updated
Jul 27, 2026
Vendor
Shahadat Hossain
Product
3D Flipbook PDF Viewer & Embedder
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 27, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 27, 2026Record 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=n/a <=1.4.2 changes=[{"at":"1.4.4","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shahadat Hossain · 3D Flipbook PDF Viewer & Embedderversion=n/a <=1.4.2 changes=[{"at":"1.4.4","status":"unaffected"}]

Published CVSS scores

7.2PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-918Server-Side Request Forgery (SSRF)
CAPEC-664Server Side Request Forgery
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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