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TI-2026-69870 Aliases CVE-2026-106155GHSA-97qc-r4xh-88c5

Stored cross-site scripting in Telerik Report Server web report viewers

Priority MEDIUM 40CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Progress Telerik Report Server before version 12.2.26.1007 contains a stored cross-site scripting flaw, CWE-79, in its shared reporting engine. An authenticated report author can embed javascript: or vbscript: URLs in report navigation actions or HTML text box links. When another user views the malicious report and triggers the link, attacker-controlled script runs in the web report viewer's origin. In a multi-user deployment, this can let the attacker act within a higher-privilege user's session, including an administrator's.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the 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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00199 9th percentileScored 2026-11-07
Fix Fixed Telerik Report Server (Progress Software): 12.2.26.1007

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
ProgressTelerik Report Serverbefore 12.2.26.100712.2.26.1007Patch availableCNA
  • Telerik Report Server VendorProgress Affected before 12.2.26.1007 Fixed in 12.2.26.1007 Patch available CNA

Remediation

Update Telerik Report Server to version 12.2.26.1007 or later, which fixes the flaw.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

  • Fix · CNA Telerik Report Server (Progress Software) Fixed in 12.2.26.1007

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Progress Software Telerik Report Server 12.2.26.1007

    2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW

    Other records, highest priority first

    • TI-2026-69869 Privilege escalation in Telerik Report Server service-agent hubPriority LOW 30
    Show all 2 records →

Timeline

  1. 2026-10-09 Threatist record created from CVE-2026-106155
  2. 2026-10-09 Alias added: GHSA-97qc-r4xh-88c5
  3. 2026-10-10 CISA SSVC decision points changed
  4. 2026-10-10 Priority changed: MEDIUM → LOW
  5. 2026-10-10 Priority changed: LOW → MEDIUM

References

Advisory 1

  • TI-2026-07083 Command injection in Progress LoadMaster KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-06182 WhatsUp Gold HasErrors SQL Injection Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-04541 WhatsUp Gold GetFileWithoutZip Directory Traversal Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-04060 Registration Authentication Bypass Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2024-01127 LoadMaster Pre-Authenticated OS Command Injection KEVCVSS 3.1CRITICAL 10.0
  • TI-2023-20934 WS_FTP Server Ad Hoc Transfer Module .NET Deserialization Vulnerability KEVCVSS 3.1CRITICAL 10.0
See all 436 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences