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Connectwise CVE-2026-0695

HIGH
Cross-site Scripting (XSS) (CWE-79)
2026-01-16 7d616e1a-3288-43b1-a0dd-0a65d3e70a49
8.7
CVSS 3.1 · NVD
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Authenticated user submits malicious script in Time Entry notes
  2. Exploit
    Script stored in Time Entry Audit Trail without encoding
  3. Execution
    Administrator or user views Audit Trail
  4. Impact
    Stored XSS executes in browser context

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.

Exploitation Conditions

ConnectWise PSA versions older than 2026.1 with Time Entry Audit Trail feature enabled. Attacker requires valid login credentials (PR:L). Target user must view the Audit Trail containing injected malicious content (UI:R).

Impact

CVSS 8.7 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: Low. User interaction: Required.

Exploit ScenarioDerived

An attacker could exploit this vulnerability to stored script code to execute in the context of a user’s browser when the affect.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Stored cross-site scripting in ConnectWise PSA versions before 2026.1 allows authenticated users to inject malicious scripts into Time Entry notes that execute in other users' browsers when viewed in the audit trail. An attacker with legitimate access could leverage this to steal session tokens, perform unauthorized actions, or compromise other users within the PSA system. No patch is currently available.

Earlier versions of this analysis (1)
v1 Mar 12, 2026 - 21:54 CVSS 8.7

In ConnectWise PSA versions older than 2026.1, Time Entry notes stored in the Time Entry Audit Trail may be rendered without applying output encoding to certain content. [CVSS 8.7 HIGH]

RemediationAI

Monitor vendor advisories for a patch. Implement output encoding and Content Security Policy headers. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

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

Technical ContextAI · show details

Classified as CWE-79 (Cross-site Scripting (XSS)). Affects Professional Service Automation. In ConnectWise PSA versions older than 2026.1, Time Entry notes stored in the Time Entry Audit Trail may be rendered without applying output encoding to certain content. Under specific conditions, this may allow stored script code to execute in the context of a user’s browser when the affected content is displayed.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.7 HIGH
AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None

DescriptionCVE.org

In ConnectWise PSA versions older than 2026.1, Time Entry notes stored in the Time Entry Audit Trail may be rendered without applying output encoding to certain content. Under specific conditions, this may allow stored script code to execute in the context of a user’s browser when the affected content is displayed.

Executive ViewAI

Why It Matters

Organizations using ConnectWise PSA face significant risk from CVE-2026-0695, a cross-site scripting vulnerability rated CVSS 8.7. Attackers could inject malicious scripts to steal user sessions, credentials, or perform actions on behalf of authenticated users. Organizations should apply vendor updates when available and consider compensating controls in the interim.

Business Impact: Severe
Compensating Controls

Apply vendor patch. If immediate patching is not feasible: (1) Implement Content-Security-Policy headers; (2) Enable HttpOnly and SameSite cookie attributes; (3) Deploy WAF XSS/CSRF rules.

Threat Intelligence Overview

EPSS Score
0.0%
Top 98% exploitable
Data Quality
3 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 HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
Very High

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

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

Affected Products (CPE)CVE.org

cpe:2.3:a:connectwise:professional_service_automation:*:*:*:*:*:*:*:*
CVE-2024-1708 HIGH POC
8.4 Feb 21

Path traversal in ConnectWise ScreenConnect 23.9.7 and earlier enables attackers with administrative privileges to write

CVE-2026-84869 CRITICAL POC
9.9 Sep 08

Unauthorized file transfer and execution in the ConnectWise ScreenConnect client (all versions prior to 26.6.5) lets a p

CVE-2017-11726 HIGH POC
8.8 Jul 31

services/system_io/actionprocessor/System.rails in ConnectWise Manage 2017.5 is vulnerable to Cross-Site Request Forgery

CVE-2023-25719 HIGH POC
8.8 Feb 13

ConnectWise Control before 22.9.10032 (formerly known as ScreenConnect) fails to validate user-supplied parameters such

CVE-2017-11727 MEDIUM POC
6.1 Jul 31

services/system_io/actionprocessor/Contact.rails in ConnectWise Manage 2017.5 allows arbitrary client-side JavaScript co

CVE-2023-25718 CRITICAL
9.8 Feb 13

In ConnectWise Control through 22.9.10032 (formerly known as ScreenConnect), after an executable file is signed, additio

CVE-2021-35066 CRITICAL
9.8 Jun 21

An XXE vulnerability exists in ConnectWise Automate before 2021.0.6.132. Rated critical severity (CVSS 9.8), this vulner

CVE-2020-15027 CRITICAL
9.8 Jul 16

ConnectWise Automate through 2020.x has insufficient validation on certain authentication paths, allowing authentication

CVE-2025-14265 CRITICAL
9.1 Dec 11

Integrity-check and server-side validation weaknesses in the ConnectWise ScreenConnect server's extension subsystem allo

CVE-2026-3564 CRITICAL
9.0 Mar 17

A cryptographic authentication bypass vulnerability in ConnectWise ScreenConnect allows remote attackers who gain access

CVE-2026-9089 HIGH
8.8 May 21

Code integrity failure in ConnectWise Automate Agent versions prior to 2026.5 allows adjacent network attackers to subst

CVE-2020-15838 HIGH
8.8 Oct 09

The Agent Update System in ConnectWise Automate before 2020.8 allows Privilege Escalation because the _LTUPDATE folder h

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