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Open ISES Tickets EUVDEUVD-2026-31293

| CVE-2026-48213 MEDIUM
Cross-site Scripting (XSS) (CWE-79)
2026-05-21 VulnCheck GHSA-wc6h-j76r-5j6p
5.1
CVSS 4.0 · NVD
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Severity by source

NVD 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 NVD · only source for this CVE.

CVSS VectorNVD

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 21, 2026 - 17:31 vuln.today
Analysis Generated
May 21, 2026 - 17:31 vuln.today
CVSS changed
May 21, 2026 - 17:22 NVD
5.4 (MEDIUM) 5.1 (MEDIUM)

DescriptionCVE.org

Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in add.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the ticket_id POST parameter directly into an HTML form input value attribute. Attackers can craft a malicious request containing a JavaScript payload that executes in the victim's browser when the response is rendered.

AnalysisAI

Reflected cross-site scripting in Open ISES Tickets before 3.44.2 allows injection of arbitrary JavaScript via the ticket_id POST parameter in add.php, which is echoed unsanitized into an HTML form input value attribute. The CVSS 4.0 vector scores this at 5.1 with no privileges required and active user interaction needed, though the CVE description characterizes attackers as authenticated - a discrepancy discussed in the risk section. No public exploit code or CISA KEV listing exists at time of analysis. This vulnerability is one of 69 XSS issues patched in a single v3.44.2 release that also addressed 19 SQL injection flaws and 5 hardcoded secrets, suggesting systemic insecure coding practices across the codebase.

Technical ContextAI

Open ISES Tickets is a PHP-based ticketing/issue-management application (CPE: cpe:2.3:a:open_ises:tickets:*:*:*:*:*:*:*:*). The vulnerability is CWE-79 (Improper Neutralization of Input During Web Page Generation - Reflected XSS). In add.php, a value submitted via the ticket_id POST parameter is concatenated directly into an HTML form input's value attribute without sanitization or encoding. PHP applications commonly introduce this class of bug by using variables like $_POST['ticket_id'] inside raw HTML echo statements. Because the injection point is a POST parameter rather than a URL query string, exploitation requires the victim to submit a crafted form or be induced to submit data through a page controlled by the attacker (e.g., a cross-origin form auto-submit). The reflected payload executes in the context of the application's origin, enabling session theft, UI redirection, or credential harvesting against any user who renders the manipulated response. The v3.44.2 release notes disclose that 69 XSS vulnerabilities were fixed across 22 separate files, indicating the lack of a centralized output-encoding layer rather than a single isolated oversight.

RemediationAI

The primary remediation is upgrading to Open ISES Tickets v3.44.2, which is confirmed as the vendor-released patched version (https://github.com/openises/tickets/releases/tag/v3.44.2; fix commit: https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbff). For Docker deployments, run 'docker compose pull && docker compose up -d'. For traditional installs, download the v3.44.2 zip, extract over the existing installation, and run the installer in Upgrade mode - the vendor confirms existing passwords remain valid. Because v3.44.2 simultaneously patches 19 SQL injection vulnerabilities and removes 5 hardcoded secrets, upgrading is strongly warranted beyond the scope of this single CVE. If immediate upgrade is not possible, a compensating control is to restrict access to add.php via web server configuration (e.g., IP allowlist or authentication gateway in front of the endpoint) to limit the population of potential victims who could be induced to submit crafted POST requests. Note that restricting add.php may break ticket creation workflows. A web application firewall rule blocking reflected script tags in POST body parameters is a lower-disruption interim measure but is not a reliable substitute for patching given the breadth of XSS issues in this codebase.

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EUVD-2026-31293 vulnerability details – vuln.today

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