PoC Index85,079 CVEs with PoCs

CVE-2026-103387

garycourt uri-js Mailto Header mailto.ts URI.parse uncaught exception

LOW 2.1EPSS 0.3%

A weakness has been identified in garycourt uri-js up to 4.4.1. This affects the function URI.parse of the file src/schemes/mailto.ts of the component Mailto Header Handler. This manipulation of the argument to causes uncaught exception. The attack may be initiated remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

Affected
garycourt · uri-js
CVSS v4.0 VULDB
2.1 LOWCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1 VULDB
4.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CVSS v2.0 VULDB
5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
0.32% chance of exploitation in the next 30 days, 23rd percentile
Published
2026-09-30

Proof-of-concept exploits (1)

References