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TI-2026-15433 Aliases CVE-2026-18855GHSA-wm9p-2xmp-4mp2

Link Library <= 7.9.4 - Unauthenticated Arbitrary File Deletion via link_url Parameter

Priority MEDIUM 48CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA.

Summary

The Link Library plugin for WordPress is vulnerable to arbitrary file deletion due to insufficient file path validation in the ll_delete_link_fields function in all versions up to, and including, 7.9.4 This makes it possible for unauthenticated attackers to delete arbitrary files on the server, which can easily lead to remote code execution when the right file is deleted (such as wp-config.php). Exploitation requires the administrator to have enabled the 'Delete local file on link deletion' plugin option (disabled by default) and to subsequently permanently delete the attacker-submitted link, which is a routine moderation action.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01352 71st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
jackdeweyLink Libraryup to 7.9.4—No fix listedCNA
  • Link Library Vendorjackdewey Affected up to 7.9.4 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:ylefebvre:link_library:*:*:*:*:*:*:*:*——jackdewey
  • cpe:2.3:a:ylefebvre:link_library:*:*:*:*:*:*:*:* Versions — — ·jackdewey

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-18855
  2. 2026-10-03 Alias added: GHSA-wm9p-2xmp-4mp2

References

Other 9

  • TI-2022-03844 Link Library < 7.4.1 - Admin+ Stored XSS CVSS 3.1MEDIUM 4.8
  • TI-2025-09688 Community Events <= 1.5.1 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2025-09687 Community Events <= 1.5.1 - Unauthenticated SQL Injection CVSS 3.1CRITICAL 9.8
  • TI-2026-24895 WordPress Modal Dialog plugin <= 3.5.16 - Remote Code Execution (RCE) vulnerability CVSS 3.1CRITICAL 9.1
  • TI-2025-11599 Community Events <= 1.5.4 - Unauthenticated SQL Injection CVSS 3.1HIGH 7.5
  • TI-2026-74593 Link Library - Unauthenticated SQL Injection via 'link_url' Parameter CVSS 3.1HIGH 7.5
See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences