What’s Vulnerable › Vulnerabilities

CVE-2026-48220: Open ISES Tickets < 3.44.2 Reflected XSS via ics205.php frm_add_str Parameter

• Severity: medium (CVSS 5.4 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-05-21 · updated 2026-07-23
• Weakness: CWE-79

Description

Open ISES Tickets before 3.44.2 contains a reflected cross-site scripting vulnerability in ics205.php that allows authenticated attackers to inject arbitrary JavaScript by passing an unsanitized value through the frm_add_str POST parameter directly into an HTML form hidden 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.

Affected products

• Open ISES Tickets: before 3.44.2 — fixed in 3.44.2

How to fix

Upgrade to a fixed version: Open ISES Tickets 3.44.2. Check the vendor advisory for mitigations.

References

• https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbff
• https://github.com/openises/tickets/releases/tag/v3.44.2
• https://www.vulncheck.com/advisories/open-ises-tickets-reflected-xss-via-ics205-php-frm-add-str-parameter

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