CVE-2026-104656

HIGH 7.3

Cross-site Scripting in Progress Telerik Fiddler Everywhere

CVSS Score

7.3

EPSS Score

0.0%

EPSS Percentile

0th

Improper neutralization of input in the sessions grid in Progress Telerik Fiddler Everywhere 8.3.0 and earlier allows an attacker to execute backend IPC commands by convincing a user to open a specially crafted SAZ file.

CWE	CWE-79
Vendor	progress software
Product	progress® telerik® fiddler® everywhere
Published	Nov 6, 2026
Last Updated	Nov 6, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

Low

Affected Versions

Progress Software / Progress® Telerik® Fiddler® Everywhere

0 < 8.3.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗

telerik.com: https://www.telerik.com/fiddler/fiddler-everywhere/documentation/knowledge-base/kb-security-cross-site-scripting-cve-2026-104656

Credits

maxsongce8805