What is CVE-2023-41047?

CVE-2023-41047 is a medium-severity vulnerability in Octoprint, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 6.2/10. Published 2023-10-09.

How severe is CVE-2023-41047?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Is CVE-2023-41047 known to be exploited?

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

Vulnerability in Octoprint

CVE-2023-41047

OctoPrint is a web interface for 3D printers. OctoPrint versions up until and including 1.9.2 contain a vulnerability that allows malicious admins to configure a specially crafted GCODE script that will allow code execution during rendering of that script. An attacker might use this to extract data managed by OctoPrint, or manipulate data managed by OctoPrint, as well as execute arbitrary commands with the rights of the OctoPrint process on the server system. OctoPrint versions from 1.9.3 onward have been patched. Administrators of OctoPrint instances are advised to make sure they can trust all other administrators on their instance and to also not blindly configure arbitrary GCODE scripts found online or provided to them by third parties.

Published 2023-10-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.006 (44.9th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 44.9% 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

Octoprint — versions < 1.9.3

Weakness classification (CWE)

CWE-1336 — Improper Neutralization of Special Elements Used in a Template Engine

Public proof-of-concept exploits

References

github.com/OctoPrint/OctoPrint/security/advisories/GHSA-fwfg-vprh-97ph (Vendor Advisory)
github.com/OctoPrint/OctoPrint/commit/d0072cff894509c77e243d6562245ad3079e17db (Patch)
github.com/OctoPrint/OctoPrint/releases/tag/1.9.3 (Release Notes)

Frequently asked questions

What is CVE-2023-41047?: CVE-2023-41047 is a medium-severity vulnerability in Octoprint, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 6.2/10. Published 2023-10-09.
How severe is CVE-2023-41047?: Medium severity. CVSS v3 base score is 6.2 out of 10.
Is CVE-2023-41047 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.