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Open ISES Tickets EUVDEUVD-2026-31182

| CVE-2026-35010 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-05-20 VulnCheck GHSA-p7vj-52m5-2hp4
5.1
CVSS 4.0 · Vendor: VulnCheck
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Severity by source

Vendor (VulnCheck) PRIMARY
5.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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 Vendor (VulnCheck) · only source for this CVE.

CVSS VectorVendor: VulnCheck

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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
None
User Interaction
A
Scope
X

Lifecycle Timeline

3
Source Code Evidence Fetched
May 20, 2026 - 20:35 vuln.today
Analysis Generated
May 20, 2026 - 20:35 vuln.today
CVSS changed
May 20, 2026 - 20:22 NVD
4.6 (MEDIUM) 5.1 (MEDIUM)

DescriptionCVE.org

Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in patient_JF.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the ticket_id GET parameter directly into a JavaScript variable assignment. Attackers can craft a malicious URL containing a JavaScript payload in the ticket_id parameter that executes in the victim's browser when the URL is visited.

AnalysisAI

Reflected XSS in Open ISES Tickets before 3.44.2 enables JavaScript injection via the ticket_id GET parameter in patient_JF.php, where the unsanitized value is written directly into a JavaScript variable assignment in the server response. The CVSS 4.0 vector (PR:N, UI:A) indicates no authentication is required from the attacker's side, though the CVE description contradicts this by specifying 'authenticated attackers' - this conflict should be verified with the vendor. Exploitation requires the victim to actively visit a crafted URL, limiting mass exploitation, but the broader v3.44.2 release context - which patches 88 total vulnerabilities including 19 SQL injection flaws - signals systemic input validation failures across the codebase. No public exploit code or CISA KEV listing has been identified at time of analysis.

Technical ContextAI

Open ISES Tickets is a PHP-based healthcare ticketing application (CPE: cpe:2.3:a:openises:tickets:*:*:*:*:*:*:*:*). The vulnerable endpoint, patient_JF.php, accepts a ticket_id value via HTTP GET and interpolates it unsanitized into a server-side JavaScript variable assignment in the HTML response - a classic CWE-79 (Improper Neutralization of Input During Web Page Generation) pattern. This sink-type placement means standard HTML-entity encoding alone would not prevent exploitation if the value lands inside a script block; proper JavaScript context escaping (e.g., JSON encoding or allowlist validation) is required. The v3.44.2 release notes confirm this was not an isolated oversight: 69 XSS vulnerabilities were patched across 22 files in the same release, alongside 19 SQL injection issues, indicating pervasive lack of output encoding and parameterized queries throughout the application. The patch is available at the referenced GitHub commit (ecfeb406a016766cae81c749e14b5145a9f2dbff).

RemediationAI

Upgrade to Open ISES Tickets v3.44.2 immediately; the vendor labels this release a 'Critical Security Update' and states all users should upgrade. The specific fix for this CVE is in commit ecfeb406a016766cae81c749e14b5145a9f2dbff (https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbff). For Docker deployments, run 'docker compose pull && docker compose up -d'. For traditional installations, download the v3.44.2 zip, extract over the existing install, and run the installer in Upgrade mode. If immediate patching is not feasible, a compensating control is to block external access to patient_JF.php via web server configuration (e.g., deny access to this endpoint from untrusted networks), though this may break legitimate functionality for remote users. Additionally, given that the same release patches 19 SQL injection vulnerabilities, treat the entire pre-3.44.2 codebase as critically exposed and prioritize upgrade over partial mitigation. Note that the v3.44.2 release also removes hardcoded secrets and fixes SSL certificate validation - reverting to default Docker credentials (admin/admin) after upgrade is a separate risk that must be addressed post-upgrade.

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EUVD-2026-31182 vulnerability details – vuln.today

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