CVE-2026-28436

HIGH
2026-03-05 [email protected]
7.2
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 22:06 vuln.today
CVE Published
Mar 05, 2026 - 21:16 nvd
HIGH 7.2

Tags

XSS Frappe

Description

Frappe is a full-stack web application framework. Prior to versions 16.11.0 and 15.102.0, an attacker can set a crafted image URL that results in XSS when the avatar is displayed, and it can be triggered for other users via website page comments. This issue has been patched in versions 16.11.0 and 15.102.0.

Analysis

Stored cross-site scripting in Frappe versions prior to 16.11.0 and 15.102.0 allows unauthenticated attackers to execute arbitrary JavaScript in users' browsers through malicious image URLs in avatar fields and website comments. The vulnerability affects any user viewing a page containing the compromised avatar, enabling session hijacking, credential theft, or malware distribution without user interaction.

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Remediation

Within 24 hours: Identify all Frappe instances in use and document current versions; disable user avatar uploads and external image URL functionality if possible. Within 7 days: Implement input validation and content security policies; monitor for suspicious avatar URLs in logs and comments. …

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Priority Score

36
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +36
POC: 0

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CVE-2026-28436 vulnerability details – vuln.today
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