What is CVE-2023-6853?

CVE-2023-6853 is a medium-severity vulnerability in Kalcaddle Kodexplorer, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2023-12-16.

How severe is CVE-2023-6853?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Is CVE-2023-6853 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SSRF in Kalcaddle Kodexplorer

CVE-2023-6853

A vulnerability classified as critical was found in kalcaddle KodExplorer up to 4.51.03. Affected by this vulnerability is the function index of the file plugins/officeLive/app.php. The manipulation of the argument path leads to server-side request forgery. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 4.52.01 is able to address this issue. The identifier of the patch is 5cf233f7556b442100cf67b5e92d57ceabb126c6. It is recommended to upgrade the affected component. The identifier VDB-248221 was assigned to this vulnerability.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2023-12-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.007 (51.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Kalcaddle Kodexplorer — versions 4.51.03
Kodcloud Kodexplorer

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Public proof-of-concept exploits

fkie-cad/nvd-json-data-feeds

References

vuldb.com/ (technical-description, Third Party Advisory, vdb-entry)
vuldb.com/ (signature, Permissions Required, permissions-required, Third Party Advisory)
note.zhaoj.in/share/oaYHbDTnPiU3 (Permissions Required, exploit, broken-link)
github.com/kalcaddle/KodExplorer/commit/5cf233f7556b442100cf67b5e92d57ceabb126c6 (Patch, patch)
github.com/kalcaddle/KodExplorer/releases/tag/4.52.01 (Release Notes, patch)

Frequently asked questions

What is CVE-2023-6853?: CVE-2023-6853 is a medium-severity vulnerability in Kalcaddle Kodexplorer, classified under Server-Side Request Forgery (SSRF). CVSS score: 6.3/10. Published 2023-12-16.
How severe is CVE-2023-6853?: Medium severity. CVSS v3 base score is 6.3 out of 10.
Is CVE-2023-6853 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.