CVE-2026-39670Network attack vector

Authenticated SSRF via unvalidated preview fetch endpoints

Published Apr 8, 2026 · Updated Apr 8, 2026

Server-side request forgery in Visual Link Preview 2.3.0 and earlier allows remote authenticated users to reach internal services. Its external URL metadata and image fetch endpoints accept attacker-selected destinations without blocking localhost, private or reserved IP ranges, or unsafe ports. Any authenticated WordPress user who can invoke these preview endpoints can make the server issue requests into otherwise unreachable network locations.

CVSS severity6.0
Medium
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Server-side request forgery in Visual Link Preview 2.3.0 and earlier allows remote authenticated users to reach internal services. Its external URL metadata and image fetch endpoints accept attacker-selected destinations without blocking localhost, private or reserved IP ranges, or unsafe ports. Any authenticated WordPress user who can invoke these preview endpoints can make the server issue requests into otherwise unreachable network locations.

The record

CVE
CVE-2026-39670
Published
Apr 8, 2026
Updated
Apr 8, 2026
Vendor
Bootstrapped Ventures
Product
Visual Link Preview
Classifications
CWE-918, CAPEC-664, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 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=0 <=2.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Bootstrapped Ventures · Visual Link Previewversion=0 <=2.3.0

Published CVSS scores

6.0PatchstackCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:L/A:L

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
Privilegesauthenticated
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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