CVE-2026-106155 — Stored Cross-site Scripting (XSS) in Telerik Report Server Web Report Viewers

Description (CNA)

In Progress® Telerik® Report Server prior to version 12.2.26.1007, a stored cross-site scripting vulnerability in the shared reporting engine allows an authenticated report author to embed javascript: or vbscript: URLs in report navigation actions or HTML text box links. When another user views the malicious report and the embedded navigation is triggered, attacker-controlled script can execute in the web report viewer's origin. In a multi-user Report Server deployment, this can enable privilege escalation by performing actions in a higher-privilege user's authenticated session, including an administrator's session.

Affected (CNA)

Vendor / product	Versions
Progress Software / Telerik Report Server	affected 0 before 12.2.26.1007

CWE

CWE-79

References

https://www.telerik.com/report-server/documentation/knowledge-base/kb-security-improper-neutralization-of-input-cve-2026-106155

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.