PT-2026-42499 · Openises+1 · Tickets

CVE-2026-48221 · Published 2026-05-21 · Updated 2026-05-21

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Name of the Vulnerable Software and Affected Versions Open ISES Tickets versions prior to 3.44.2

Description A reflected cross-site scripting issue exists in the 'ics205a.php' endpoint. Authenticated attackers can inject arbitrary JavaScript by providing an unsanitized value via the frm add str POST parameter, which is then placed directly into an HTML form hidden input value attribute. This allows a malicious payload to execute within the victim's browser when the response is rendered.

Recommendations Update to version 3.44.2 or later. Avoid using the frm add str parameter in the 'ics205a.php' endpoint until the update is applied.

Exploit

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2026-48221

Affected Products

Tickets

References · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48221.json · Exploit
• https://github.com/openises/tickets/commit/ecfeb406a016766cae81c749e14b5145a9f2dbff · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-48221 · Security Note
• https://osv.dev/vulnerability/CVE-2026-48221 · Vendor Advisory
• https://github.com/openises/tickets/releases/tag/v3.44.2 · Note
• https://vulncheck.com/advisories/open-ises-tickets-reflected-xss-via-ics205a-php-frm-add-str-parameter · Note