VulnerabilityPublished 15 Mar 2026Updated 17 Mar 2026

CVE-2026-4165: Worksuite HR, CRM and Project Management · Cross-site Scripting

Affects Worksuite HR, CRM and Project ManagementSource CVE Database V5

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Public exploit available · CVSS 4.8 Medium.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 4.0 base score

4.8Medium

How severe the flaw is on the 0–10 CVSS scale.

EPSS: 0.2% chance of exploitation in 30 days – higher than 10% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Base metrics

Attack Vector: Network
Attack Complexity: Low
Attack Requirements: None
Privileges Required: High
User Interaction: Passive
Vulnerable system confidentiality: None
Vulnerable system integrity: Low
Vulnerable system availability: None
Subsequent system confidentiality: None
Subsequent system integrity: None
Subsequent system availability: None

Threat metrics

Exploit Maturity: POC

Bold values are the worst case: easiest to exploit or largest impact.

Attack Vector: Network: The vulnerable system is bound to the network stack and the set of possible attackers extends beyond the other options listed below, up to and including the entire Internet. Such a vulnerability is often termed “remotely exploitable” and can be thought of as an attack being exploitable at the protocol level one or more network hops away (e.g., across one or more routers).
Attack Complexity: Low: The attacker must take no measurable action to exploit the vulnerability. The attack requires no target-specific circumvention to exploit the vulnerability. An attacker can expect repeatable success against the vulnerable system.
Attack Requirements: None: The successful attack does not depend on the deployment and execution conditions of the vulnerable system. The attacker can expect to be able to reach the vulnerability and execute the exploit under all or most instances of the vulnerability.
Privileges Required: High: The attacker requires privileges that provide significant (e.g., administrative) control over the vulnerable system allowing full access to the vulnerable system’s settings and files.
User Interaction: Passive: Successful exploitation of this vulnerability requires limited interaction by the targeted user with the vulnerable system and the attacker’s payload. These interactions would be considered involuntary and do not require that the user actively subvert protections built into the vulnerable system.
Vulnerable system confidentiality: None: There is no loss of confidentiality within the Vulnerable System.
Vulnerable system integrity: Low: Modification of data is possible, but the attacker does not have control over the consequence of a modification, or the amount of modification is limited. The data modification does not have a direct, serious impact to the Vulnerable System.
Vulnerable system availability: None: There is no impact to availability within the Vulnerable System.
Subsequent system confidentiality: None: There is no loss of confidentiality within the Subsequent System or all confidentiality impact is constrained to the Vulnerable System.
Subsequent system integrity: None: There is no loss of integrity within the Subsequent System or all integrity impact is constrained to the Vulnerable System.
Subsequent system availability: None: There is no impact to availability within the Subsequent System or all availability impact is constrained to the Vulnerable System.
Exploit Maturity: POC: Based on threat intelligence sources each of the following must apply: · Proof-of-concept is publicly available · No knowledge of reported attempts to exploit this vulnerability · No knowledge of publicly available solutions used to simplify attempts to exploit the vulnerability

Definitions: FIRST CVSS v4.0 specification.

Exploitation evidence

Disclosed: evidence found.
CVE published 15 Mar 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Affected software

Product	Affected	Fixed in
WorksuiteHR, CRM and Project Management	Affected 5.5.0 – 5.5.25 26 affected builds	Fixed in–

AI-suggested

Apply official patches or updates from Worksuite as soon as they become available to address the vulnerability directly.
Implement strict input validation and output encoding on the 'Client Note' parameter to neutralize malicious scripts.
Deploy web application firewalls (WAFs) with rules designed to detect and block XSS payloads targeting the affected endpoint.
Conduct security awareness training for users to recognize and avoid clicking suspicious links or interacting with untrusted content.
Monitor application logs and network traffic for unusual activities indicative of attempted XSS exploitation.
Use Content Security Policy (CSP) headers to restrict the execution of unauthorized scripts within the application context.
Review and harden session management to minimize the impact of stolen session tokens.
Regularly audit and test the application for other potential injection points to prevent similar vulnerabilities. These steps, combined with timely patching, will significantly reduce the risk posed by this vulnerability.

Description

A vulnerability has been found in Worksuite HR, CRM and Project Management up to 5.5.25. The affected element is an unknown function of the file /account/orders/create. The manipulation of the argument Client Note leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.

Impact

The primary impact of CVE-2026-4165 is on the confidentiality and integrity of user sessions and data within the affected Worksuite applications. Successful exploitation can lead to execution of arbitrary scripts in the context of authenticated users, enabling attackers to steal session cookies, perform actions on behalf of users, or redirect users to malicious websites. This can result in unauthorized access to sensitive HR, CRM, and project management data, potentially leading to data breaches, reputational damage, and compliance violations. Although the vulnerability does not directly affect system availability, the indirect consequences such as phishing or malware delivery can disrupt business operations. Organizations relying on Worksuite software, especially those with remote or distributed workforces, face increased risk due to the remote exploitability and user interaction requirement. The medium severity score indicates moderate risk, but the public disclosure and ease of exploitation without privileges elevate the urgency for mitigation. Failure to address this vulnerability could expose organizations to targeted attacks, especially in sectors handling sensitive employee and customer information.

Summary

CVE-2026-4165 is a cross-site scripting (XSS) vulnerability identified in the Worksuite HR, CRM, and Project Management software up to version 5.5.25. The flaw exists in the /account/orders/create endpoint, specifically in the handling of the 'Client Note' parameter. This parameter is insufficiently sanitized, allowing an attacker to inject malicious JavaScript code that executes in the context of a victim’s browser. The vulnerability can be exploited remotely without authentication, but requires user interaction, such as clicking a malicious link or viewing a crafted page. The CVSS 4.0 vector indicates network attack vector (AV:N), low attack complexity (AC:L), no privileges required (PR:H but with user interaction UI:P), and no impact on confidentiality, integrity, or availability (VC:N, VI:L, VA:N). The medium severity rating reflects that while the attack is feasible, the impact is somewhat limited to client-side effects like session hijacking or phishing. No known exploits are currently active in the wild, but public disclosure increases the likelihood of future exploitation. The vulnerability affects all versions from 5.5.0 through 5.5.25, which are widely used in small and medium enterprises for HR, CRM, and project management tasks. The lack of available patches at the time of disclosure necessitates immediate mitigation through input validation and monitoring. This vulnerability highlights the importance of secure coding practices and thorough input sanitization in web applications handling user-generated content.

References

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