Medium severity · published May 11, 2021
CVE-2021-32561
OctoPrint before 1.6.0 allows XSS because API error messages include the values of input parameters
6.1
CVSS
1.2%
EPSS
No
On KEV
Description
OctoPrint before 1.6.0 allows XSS because API error messages include the values of input parameters.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
OC
Octoprint · Octoprint
before 1.6.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-32561
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-32561
Release Notes
https://github.com/OctoPrint/OctoPrint/releases/tag/1.6.0
Release Notes
https://octoprint.org/blog/2021/04/27/new-release-1.6.0/
Exploit
https://www.brzozowski.io/web-applications/2021/05/11/the-insecure-story-of-octoprint.html
More from Octoprint
9.4
CVE-2024-32977
OctoPrint Authentication Bypass via X-Forwarded-For Header when autologinLocal is enabled
9.1
CVE-2018-16710
OctoPrint through 1.3.9 allows remote attackers to obtain sensitive information or cause a denial of service via HTTP requests on port 8081
8.8
CVE-2025-58180
OctoPrint is Vulnerable to RCE Attacks via Unsanitized Filename in File Upload
8.8
CVE-2022-3068
Improper Privilege Management in GitHub repository octoprint/octoprint prior to 1.8.3
7.8
CVE-2022-2930
Unverified Password Change in GitHub repository octoprint/octoprint prior to 1.8.3
