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Powershell Universal EUVDEUVD-2026-110829

| CVE-2026-116627
Cross-site Scripting (XSS) (CWE-79)
2026-10-27 DEVOLUTIONS GHSA-7f5v-mvwm-33f5
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Week Schedule remediation this week. Why: No CVSS yet + dangerous CWE (RCE/injection/auth-bypass class).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

Improper neutralization of input during web page generation ('Cross-site Scripting') in the notifications feature in Devolutions PowerShell Universal 2026.3.0 and earlier allows an authenticated user with notification creation permission to execute arbitrary JavaScript in the browser of another user via a crafted notification target URL.

Affected VersionsENISA

PowerShell Universal 0 <2026.3.1

Affected Packages

euvd powershell_universal fix: 2026.3.1

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

2
Patch available
Oct 27, 2026 - 14:02 EUVD
CVE Published
Oct 27, 2026 - 12:45 cve.org
UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Data Quality
1 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity Not scored yet
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
No CVSS yet + dangerous CWE (RCE/injection/auth-bypass class)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

CVE-2023-49213 HIGH POC
8.8 Nov 23

The API endpoints in Ironman PowerShell Universal 3.0.0 through 4.2.0 allow remote attackers to execute arbitrary comman

CVE-2026-16801 HIGH
8.8 Jul 24

Authenticated users with variable write permission on Devolutions PowerShell Universal 2026.2.2 and earlier can execute

CVE-2026-16800 HIGH
8.8 Jul 24

Code injection in Devolutions PowerShell Universal 2026.2.2 and earlier allows an authenticated user with schedule creat

CVE-2022-45183 HIGH
8.8 Nov 14

Escalation of privileges in the Web Server in Ironman Software PowerShell Universal 2.x and 3.x allows an attacker with

CVE-2026-4064 HIGH
8.3 Mar 17

PowerShell Universal before version 2026.1.4 contains insufficient authorization validation on gRPC endpoints, allowing

CVE-2022-45184 HIGH
7.2 Nov 14

The Web Server in Ironman Software PowerShell Universal v3.x and v2.x allows for directory traversal outside of the conf

CVE-2026-13437 MEDIUM
6.5 Jun 29

Devolutions PowerShell Universal 2026.2.0 leaks serialized App Tokens in plaintext within AI Agent job API responses, en

CVE-2026-16798 MEDIUM
6.5 Jul 24

OAuth refresh token disclosure in Devolutions PowerShell Universal 2026.2.2 and earlier allows authenticated users with

CVE-2026-16802 MEDIUM
6.5 Jul 24

Information disclosure in Devolutions PowerShell Universal 2026.2.2 and earlier allows a local attacker with file system

CVE-2026-3277 MEDIUM
6.5 Feb 27

authentication configuration in PowerShell Universal versions up to 2026.1.3 is affected by cleartext storage of sensit

CVE-2026-0618 MEDIUM
6.1 Jan 07

PowerShell Universal versions before 4.5.6 and 5.6.13 contain a stored cross-site scripting vulnerability that allows un

CVE-2026-3563 MEDIUM
5.5 Mar 17

PowerShell Universal versions before 2026.1.4 contain an improper input validation vulnerability in the apps and endpoin

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