> CVE-2026-83801 [MEDIUM]

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PUBLISHED
2026-09-22 20:17
MODIFIED
2026-09-22 20:17
CVSS_SCORE V3
5.4
EPSS (Prob. Exploit)
0.22%
Top 88.3%
DATA SOURCES:
NVD 🔗 2026-09-22 CWE MITRE 🔗 2026-10-01 FIRST EPSS 🔗 2026-10-21 GITHUB 🔗 2026-10-15 OSV 🔗 2026-10-19

> DESCRIPTION

Nautobot is a Network Source of Truth and Network Automation Platform. Prior to 2.4.37 and 3.1.8, a user with extras.add_relationship or extras.change_relationship permission can store HTML or JavaScript in a Relationship description, and a user with dcim.add_modulefamily or dcim.change_modulefamily permission can store it in a Module Family name. Nautobot assigns these values to form field help_text rendered by render_field.html through Django's |safe filter without adequate neutralization. The stored content executes in the authenticated browser session of any user, including an administrator or superuser, who opens an affected create or edit form. This can enable actions as the victim, session or token theft, and further privilege escalation. This issue is fixed in versions 2.4.37 and 3.1.8.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> CVSS V3 METRICS

CVSS_VECTOR
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
EXPLOITABILITY
2.3
IMPACT
2.7

> MÉTRIQUES CVSS DÉTAILLÉES

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Métrique Valeur Interprétation
AV (Vecteur d'Attaque)
Attack Vector
Network (N)
Exploit possible à distance via réseau (HTTP, API, etc.)
AC (Complexité d'Attaque)
Attack Complexity
Low (L)
Peu de conditions requises pour exploiter
PR (Privilèges Requis)
Privileges Required
Low (L)
Authentifié avec compte utilisateur basique
UI (Interaction Utilisateur)
User Interaction
Required (R)
Nécessite une action utilisateur (clic lien, ouverture fichier, etc.)
S (Périmètre)
Scope
Changed (C)
Impact s'étend au-delà du composant compromis
C (Impact Confidentialité)
Confidentiality Impact
Low (L)
Divulgation limitée d'informations
I (Impact Intégrité)
Integrity Impact
Low (L)
Modification limitée des données possible
A (Impact Disponibilité)
Availability Impact
None (N)
Aucune interruption de service

> RÉSUMÉ DES IMPACTS

Confidentialité
Low
Divulgation limitée d'informations
Intégrité
Low
Modification limitée des données possible
Disponibilité
None
Aucune interruption de service

> WEAKNESSES

CWE-79

> CWE DETAILED DESCRIPTIONS

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

> GITHUB SECURITY ADVISORY

GHSA-56v6-2fhr-wxgq MODERATE

Nautobot: Stored cross-site scripting (XSS) in object create/edit form help text

AFFECTED PACKAGES:
PIP / nautobot
>= 3.0.0, < 3.1.8
Fixed in: 3.1.8
PIP / nautobot
< 2.4.37
Fixed in: 2.4.37

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Nautobot: Stored cross-site scripting (XSS) in object create/edit form help text

AFFECTED PACKAGES:
Unknown / Unknown
186 versions affected
ALIASES:
GHSA-56v6-2fhr-wxgq, PYSEC-2026-4110

> HISTORIQUE DES MODIFICATIONS

Première apparition
22/09/2026 20:17
Source: NVD
📊 ENRICHISSEMENT 01/10/2026 06:01
CWE
Champ modifié: Description CWE
Ancienne valeur:
N/A
Nouvelle valeur:
CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') - The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in...
Total des modifications: 1 Dernière mise à jour: 3 weeks ago

> REFERENCES

https://github.com/nautobot/nautobot/commit/e6ff20d50e0759135c6d278e7b2ceec56ed9...
https://github.com/nautobot/nautobot/commit/f8a62466f3ebc42759a6373e7c79b0cad575...
https://github.com/nautobot/nautobot/releases/tag/v2.4.37
https://github.com/nautobot/nautobot/releases/tag/v3.1.8
https://github.com/nautobot/nautobot/security/advisories/GHSA-56v6-2fhr-wxgq
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