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CVE-2026-35011: Open ISES Tickets < 3.44.2 Reflected XSS via opena.php frm_call Parameter

• Severity: medium (CVSS 4.6 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: 2026-05-20 · updated 2026-07-23
• Weakness: CWE-79

Description

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

Affected products

• openises tickets: before 3.44.2 — fixed in 3.44.2

How to fix

Upgrade to a fixed version: openises 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-opena-php-frm-call-parameter

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