What is CVE-2023-6646?

CVE-2023-6646 is a low-severity vulnerability in Sissbruecker Linkding, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2023-12-09.

How severe is CVE-2023-6646?

Low severity. CVSS v3 base score is 3.5 out of 10.

Is CVE-2023-6646 known to be exploited?

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

XSS in Sissbruecker Linkding

CVE-2023-6646

A vulnerability classified as problematic has been found in linkding 1.23.0. Affected is an unknown function. The manipulation of the argument q leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 1.23.1 is able to address this issue. It is recommended to upgrade the affected component. VDB-247338 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early, responded in a very professional manner and immediately released a fixed version of the affected product.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-12-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (48.5th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 48.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Sissbruecker Linkding — versions 1.23.0
Linkding — versions 1.23.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

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)
treasure-blarney-085.notion.site/linkding-XSS-12709fa5ec664c8ebf6a4a02141252a8 (Exploit, Third Party Advisory, exploit)
github.com/sissbruecker/linkding/releases/tag/v1.23.1 (Release Notes, patch)

Frequently asked questions

What is CVE-2023-6646?: CVE-2023-6646 is a low-severity vulnerability in Sissbruecker Linkding, classified under Cross-site Scripting. CVSS score: 3.5/10. Published 2023-12-09.
How severe is CVE-2023-6646?: Low severity. CVSS v3 base score is 3.5 out of 10.
Is CVE-2023-6646 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.