CVE-2026-66031 - Ekushey Project Manager CRM 5.0 Stored XSS via Client Name Field

A GitHub repository version of this disclosure can be read here: CVE-2026-66031.

Description

Ekushey Project Manager CRM through version 5.0 contains a stored cross-site scripting vulnerability that allows authenticated client users to inject arbitrary HTML and JavaScript by entering malicious payloads into the Reply Ticket field. Attackers can craft and store malicious scripts that execute in the browser sessions of Staff or Administrator users who view the Support Ticket detail page.

Proof-of-Concept

1. Authenticate as a lower-privileged Client user, navigate to any created ticket and insert the following XSS payload into the Reply Ticket field:

<u>Ticket Reply</u><script>alert("Client Ticket Reply Stored XSS")</script>

2. Log out of the Client account and log in as a Staff user. Navigate to Support Ticket and view the created ticket. The payload executes immediately upon rendering the ticket summary table.

3. Authenticate as an Admin user and navigate to the Support Ticket page. The stored XSS triggers identically in the Admin panel.

Timeline

• 23 July 2026: This vulnerability in Ekushey Project Manager CRM v5.0 was initially discovered using their live demo instance.
• 24 July 2026: I submitted a complete report to VulnCheck.
• 25 July 2026: Following an initial triage, VulnCheck confirmed they were unable to locate a security reporting mechanism for Creativeitem. Consequently, they supported the decision to proceed with public disclosure and reserved a CVE ID for this vulnerability.
• 26 July 2026: I published a public disclosure in my CVE-Disclosures repository on GitHub.
• 27 July 2026: VulnCheck then officially published CVE-2026-66031.
• 28 July 2026: I published this blog post.