CVE-2026-108688: Eladmin through 2.7 Missing Authorization via /api/localStorage/pictures Upload

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-11 · updated 2026-10-16
Weakness: CWE-862

Description

Eladmin through 2.7 contains a missing authorization vulnerability in the LocalStorageController uploadPicture handler that allows low-privileged authenticated users to bypass the storage:add permission. Attackers can send POST requests with image-named files to /api/localStorage/pictures to write files into server local storage and disclose absolute server paths.

Affected products

elunez eladmin: through 2.7

References

https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/eladmin/poc_localStorage_pictures.py
https://github.com/elunez/eladmin/blob/39d480938d27a9630d632578c3ef60cf3647a79e/eladmin-tools/src/main/java/me/zhengjie/rest/LocalStorageController.java#L72-L82
https://www.vulncheck.com/advisories/eladmin-through-2.7-missing-authorization-via-api-localstorage-pictures-upload

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