CVE-2026-78394 json
Link Library < 7.9.6 - Contributor+ Path Traversal via 'filepath' Parameter
published 2026-09-25 45 d ago modified 2026-09-25 45 d ago also EUVD-2026-86528
- cvss
- 4.1
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 14%
- public exploits
- 0
- none known
Summary
The Link Library WordPress plugin before 7.9.6 does not sanitize a user-supplied destination folder before writing a generated image to disk, allowing users with the Contributor role and above to create directories and write or overwrite image files anywhere the web server can write, including outside the site's document root.
The written file name is always numeric with a fixed image extension, so executable code cannot be planted this way.
Patch / fix
- Unknown Link Library 7.9.6
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 45 d ago
Exploit prediction
0.23% chance of exploitation in the next 30 days, higher than 14% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- wpscan.com https://wpscan.com/vulnerability/9da07b4f-5332-4ba5-8a34-6f2ed303b62c/ referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N |
| CNA | 3.1 | 4.1 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:L/A:N |
Affected products
- Unknown Link Library
Classification
- Weakness
-
- CWE-22 Improper Limitation of a Pathname to a Restricted Directory
- Technology feeds
References
-
wpscan.com
/vulnerability/9da07b4f-5332-4ba5-8a34-6f2ed303b62c/
exploit, vdb-entry, technical-description
Sources
- CVE List CVE-2026-78394
- NVD CVE-2026-78394
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.