Link Library - Unauthenticated SQL Injection via 'link_url' Parameter
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- SQL injection
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-89.
Summary
The Link Library plugin for WordPress, by jackdewey, is vulnerable to time-based SQL injection through the 'link_url' parameter in all versions up to and including 7.9.2. The parameter is insufficiently escaped, and the existing SQL query is not properly prepared. Unauthenticated attackers can append additional SQL queries to existing ones and extract sensitive information from the database. The CVSS 3.1 base score is 7.5 (HIGH), with vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, and the weakness is CWE-89.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
The Link Library plugin for WordPress is vulnerable to time-based SQL Injection via the 'link_url' parameter in all versions up to, and including, 7.9.2 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for unauthenticated attackers to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database.
Why it matters now
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
Remediation
No fixed version is listed for Link Library. Remove or disable the plugin until a patched release is available, and monitor the vendor for an update that fixes the 'link_url' parameter.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Timeline
- 2026-10-15 Threatist record created from CVE-2026-15090
- 2026-10-16 Alias added: GHSA-xg95-mp7q-fp5g
- 2026-10-16 CISA SSVC decision points changed
- 2026-10-16 Priority changed: MEDIUM → LOW
References
Other 3
- https://www.wordfence.com/threat-intel/vulnerabilities/id/96259333-8d6f-4a27-9f52-c65d599ed981?source=cve
- https://plugins.trac.wordpress.org/changeset?reponame=&new=3616354%40link-library%2Ftags%2F7.9.3&old=3515903%40link-library%2Ftags%2F7.9.2
- https://plugins.trac.wordpress.org/changeset/3616353/link-library/trunk/usersubmission.php
More jackdewey vulnerabilities
- 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-2026-15433 Link Library <= 7.9.4 - Unauthenticated Arbitrary File Deletion via link_url Parameter CVSS 3.1CRITICAL 9.1
- 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
Sources
- CVE-2026-15090 · CVE Program
- CVE-2026-15090 · NVD
- FIRST EPSS
- GHSA-xg95-mp7q-fp5g · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences