Link Library < 7.9.6 - Unauthenticated SSRF via Reciprocal Link Validation

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-78397
StatePUBLISHED
AssignerWPScan
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-09-25 07:16:54 UTC
Updated2026-09-25 13:25:48 UTC
DescriptionThe Link Library WordPress plugin before 7.9.6 does not validate the destination of a user-supplied URL before falling back to an unprotected fetch when its safe request is rejected, allowing unauthenticated visitors to make the site issue requests to hosts on its internal network and to learn from the response whether an internal service answered. Versions below 7.8.8 are covered by CVE-2025-68600; this entry covers 7.8.8 through 7.9.5, where that fix was incomplete. Exploitation requires the site owner to have published the Link Library WordPress plugin before 7.9.6's public link submission form with reciprocal-link validation enabled.

Risk And Classification

Primary CVSS: v3.1 4 MEDIUM from ADP

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

EPSS: 0.001620000 probability, percentile 0.047340000 (date 2026-09-27)

Problem Types: CWE-918 | CWE-918 Server-Side Request Forgery (SSRF) | CWE-918 CWE-918 Server-Side Request Forgery (SSRF)

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED4MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary4MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:N/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Unknown Link Library affected 7.8.8 7.9.6 semver Not specified

References

ReferenceSourceLinkTags
wpscan.com/vulnerability/7842ef44-582c-40a8-8f3c-cf8abebaf7fb [email protected] wpscan.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Charles Vosburgh (en)

CNA: WPScan (en)

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