CVE-2026-100372

ClipBucket v5 before 5.5.3-#197 contains a path traversal vulnerability in the admin template editor that allows authenticated administrators to overwrite PHP files by supplying directory traversal sequences in the folder parameter. Attackers with manage_template_access permission can traverse outside the layout directory to modify executable PHP files and achieve remote code execution as the web server user.

CVSS 4.0

8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS 3.1

7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

EPSS

1.1% chance of exploitation in the next 30 days; higher than 66% of CVEs (scores of 2026-10-25)

CWE

CWE-22

Published

2026-09-25

Modified

2026-09-30

Record from

the NVD, synced 2026-10-19

References

• https://github.com/MacWarrior/clipbucket-v5
• https://github.com/MacWarrior/clipbucket-v5/blob/61cce55ab26ef88fb782dfde47b44c17c56978cd/upload/admin_area/template_editor.php#L44-L69
• https://github.com/MacWarrior/clipbucket-v5/commit/f31de49b2194482ffef7147aa1e9b1c8f0f04eb7
• https://github.com/MacWarrior/clipbucket-v5/releases/tag/5.5.3-%23197
• https://hackmd.io/@leediay/S1AIRjzqfx

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