CVE-2026-78397
Last modified
CVE-2026-78397 is a medium-severity vulnerability rated 4/10 on the CVSS scale. The 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..
Description
The 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.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Unknown | Link Library | >= 7.8.8, < 7.9.6 |
References
Timeline
- Published
- Last Modified
- Status
- Deferred
Frequently Asked Questions
What is CVE-2026-78397?
How severe is CVE-2026-78397?
How do I fix CVE-2026-78397?
How Strix Helps
- One Click Account Takeover in GranolaHow a notification link broke out of Electron and led to a one-click account takeover.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-78386RansomLook exposed sensitive operator-side scraping configur…8.7
- CVE-2026-78387RansomLook contains an authorization weakness in the web-bas…9.4
- CVE-2026-7839UltraVNC repeater through 1.8.2.2 initializes the HTTP admin…9.1
- CVE-2026-78391RansomLook contains a stored cross-site scripting (XSS) vuln…8.8
- CVE-2026-78393The Link Library WordPress plugin before 7.9.6 does not prop…6.1
- CVE-2026-78394The Link Library WordPress plugin before 7.9.6 does not sani…4.1
- CVE-2026-7840UltraVNC repeater through 1.8.2.2 contains a global buffer o…9.8
- CVE-2026-78408The nsenter --join-cgroup option opens the target cgroup.pro…7.9
- CVE-2026-78409The X-mount.subdir option uses a detached-tree fast path on …7
- CVE-2026-7841A remote code execution vulnerability exists in Notification…8.8
- CVE-2026-78410A flaw was found in util-linux. Restricted bind mounts take …7.8
- CVE-2026-78414Cross-site scripting in the Web Administration interface of …8
Are you affected by CVE-2026-78397?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST