CVE-2026-104656

EUVD-2026-118359
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.
Cross-site Scripting
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
ProgressSoftwareCNA
7.3 HIGH
LOCAL
LOW
NONE
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources (CNA/ADP records, vendor advisories, Enginsight analysis).
VendorProductVersionSource
progresstelerik_fiddler_everywhere
𝑥
< 8.3.0
CNA
Common Weakness Enumeration
References
https://www.telerik.com/fiddler/fiddler-everywhere/documentation/knowledge-base/kb-security-cross-site-scripting-cve-2026-104656