EUVD-2026-28431CVSS VectorNVD
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/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
Lifecycle Timeline
5Blast Radius
ecosystem impact- 2 npm packages depend on @saltcorn/server (2 direct, 0 indirect)
Ecosystem-wide dependent count for version 1.5.0-beta.0.
DescriptionNVD
Saltcorn is an extensible, open source, no-code database application builder. Prior to versions 1.4.6, 1.5.6, and 1.6.0-beta.5, Saltcorn validates the post-login dest parameter with a string check that only blocks :/ and //. Because all WHATWG-compliant browsers normalise backslashes (\) to forward slashes (/) for special schemes, a payload such as /\evil.com/path slips through is_relative_url(), is emitted unchanged in the HTTP Location header, and causes the browser to navigate cross-origin to an attacker-controlled domain. The bug is reachable on a default install and only requires a victim who can be tricked into logging in via a crafted Saltcorn URL. This issue has been patched in versions 1.4.6, 1.5.6, and 1.6.0-beta.5.
AnalysisAI
Open redirect in Saltcorn's post-login destination parameter validation allows attackers to redirect authenticated users to attacker-controlled domains via backslash bypass. Versions prior to 1.4.6, 1.5.6, and 1.6.0-beta.5 are vulnerable because the is_relative_url() function only blocks ':/' and '//' but fails to account for WHATWG URL parsing, which normalizes backslashes to forward slashes in special schemes. …
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External POC / Exploit Code
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