Cross-site Scripting potential in custom links, job buttons, and computed fields
Impact
All users of Nautobot versions earlier than 1.6.6 or 2.0.5 are potentially affected.
Due to incorrect usage of Django's mark_safe() API when rendering certain types of user-authored content, including:
- custom links
- job buttons
- computed fields
it is possible that users with permission to create or edit these types of content could craft a malicious payload (such as JavaScript code) that would be executed when rendering pages containing this content.
Patches
Has the problem been patched? What versions should users upgrade to?
We have fixed the incorrect uses of mark_safe() (generally by replacing them with appropriate use of format_html() instead) to prevent such malicious data from being executed.
Users on Nautobot 1.6.x LTM should upgrade to v1.6.6 and users on Nautobot 2.0.x should upgrade to v2.0.5.
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
Appropriate object permissions can and should be applied to restrict which users are permitted to create or edit the aforementioned types of user-authored content. Other than that, there is no direct fix available.
References
Are there any links users can visit to find out more?
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | nautobot | < 1.6.6, >= 2.0.0, < 2.0.5 | 1.6.6, 2.0.5 |
References
- https://github.com/nautobot/nautobot/security/advisories/GHSA-cf9f-wmhp-v4pr
- https://github.com/nautobot/nautobot/pull/4832
- https://github.com/nautobot/nautobot/pull/4833
- https://github.com/nautobot/nautobot/commit/362850f5a94689a4c75e3188bf6de826c3b012b2
- https://github.com/nautobot/nautobot/commit/54abe23331b6c3d0d82bf1b028c679b1d200920d
- https://docs.djangoproject.com/en/3.2/ref/utils/#django.utils.html.format_html
- https://docs.djangoproject.com/en/3.2/ref/utils/#django.utils.safestring.mark_safe
- https://nvd.nist.gov/vuln/detail/CVE-2023-48705
- https://github.com/nautobot/nautobot
- https://github.com/pypa/advisory-database/tree/main/vulns/nautobot/PYSEC-2023-285.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L- Weakness (CWE)
CWE-79- Platform
- Python (PyPI)
- Package
nautobot- Disclosed
- 22.11.2023
- Updated
- 11.10.2026 11:20
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2023-285 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-cf9f-wmhp-v4pr - CC BY 4.0
Vulnerability history: nautobot
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 19
- First → latest
- 02.2023 09.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 9
- Medium 6
- Low 4
Disclosures per year
- 2023: 5
- 2024: 5
- 2025: 2
- 2026: 7
-
Cross-site Scripting potential in custom links, job buttons, and computed fields this entry
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