CVE-2026-78394
Link Library < 7.9.6 - Contributor+ Path Traversal via 'filepath' Parameter
Unknown Link Library
CVSS
4.1MediumExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.24%Chance of exploitation activity in the next 30 days, higher than 14% of CVEs. Scored 23 Oct 2026FIRST EPSS
What fixes it
- 7.9.6Link LibraryCVE List
A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.
Description
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.
Text from CVE List
Affected versions 1
- Link Libraryaffected: all versions before 7.9.6CVE List