CVE-2026-93903

CRITICAL 1 PoC
INFO Priority: 0.02 BB Relevance: 79/100
Published: 2026-09-30 Modified: 2026-10-29 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: X
AT: None
VC: High
VI: High
VA: High

Description

LiteSpeed Web Server (LSWS) before 6.3.7 build 1 mishandles internal redirect URL validation in a certain "corner case."

Affected Software (1)

VendorProductVersion
litespeedtech LiteSpeed Web Server 0 < 6.3.7 build 1

Proof of Concept (1)

Bug Bounty Relevance

79 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction
✓ PoC available (1)

CVSS Score

9.4 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/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

EPSS — Exploitation Probability

0.26%
Raw Score 0.002560
Percentile 17.3%
Date 2026-10-29

Intelligence Sources

mitre ref →
nvd ref →