# CVE-2026-108688: Eladmin LocalStorageController authorization bypass

Source: https://junglewise.ai/threats/cve-2026-108688-eladmin-through-2-7-contains-a-missing-authorization  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-11. Updated: 2026-10-16  
License: CC BY 4.0 with a link back

CVE-2026-108688 · Severity: medium · CVSS 4.3 · Published 2026-10-11

Eladmin, a web-based administrative tool, contains a flaw in its file storage feature that allows any authenticated user to upload image files regardless of their assigned permissions. An attacker with a basic user account can upload files to the server, write them to disk, and obtain the absolute file path, potentially exposing sensitive information or enabling further attacks.

Technologies: [Elunez Eladmin](https://junglewise.ai/threats/technologies/eladmin). Vendors: [Elunez](https://junglewise.ai/threats/vendors/elunez).

## Quick answers

**Is CVE-2026-108688 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-108688 being exploited in the wild.

**How severe is CVE-2026-108688?** Medium severity, with a CVSS score of 4.3, published 11 October 2026.

**Which products and versions are affected?** Elunez Eladmin through 2.7.

**Is there a fix for CVE-2026-108688?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-108688 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2026-108688?** Check whether you run Elunez Eladmin at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The POST /api/localStorage/pictures endpoint in LocalStorageController lacks a @PreAuthorize annotation to enforce the required 'storage:add' permission, unlike the ordinary POST /api/localStorage endpoint. Any authenticated user can bypass this check via multipart file upload, and the response leaks the absolute server-side path to the stored file. File type validation is limited to image extension checks only.

## Affected products

- Elunez Eladmin through 2.7

## Timeline

- 2026-10-11: disclosed

## References

- [https://github.com/AnkesKasty/cve-request-poc/blob/a7b6d1423555812d8efa26c91c5d0683164b31e5/eladmin/poc_localStorage_pictures.py](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](https://github.com/elunez/eladmin/blob/39d480938d27a9630d632578c3ef60cf3647a79e/eladmin-tools/src/main/java/me/zhengjie/rest/LocalStorageController.java)

## Related threats

- [elunez eladmin improper authorization in multiple controllers](https://junglewise.ai/threats/cve-2026-77036-elunez-eladmin-improper-authorization-in-multiple-controllers)
- [elunez eladmin command injection in Application Deployment Module](https://junglewise.ai/threats/cve-2026-10550-elunez-eladmin-command-injection-in-application-deployment-module)