Vulnerability · Published Aug 4, 2026 · Assigned by VulDB

CVE-2026-18721kalcaddle kodbox SSO API Login apiLogin redirect

Medium 4.3

In plain English

A medium-severity open redirect in kodbox from kalcaddle. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 37% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.4%top 63.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in kalcaddle kodbox 1.67 Build 02. This issue affects some unknown processing of the file /user/sso/apiLogin of the component SSO API Login. The manipulation of the argument callbackUrl leads to open redirect. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Affected products (as reported)

Vendor	Product	Versions
kalcaddle	kodbox	1.67 Build 02

Weakness: CWE-601 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N/E:P/RL:X/RC:R

References

VDB-385632 | kalcaddle kodbox SSO API Login apiLogin redirect vdb-entry, technical-description
VDB-385632 | CTI Indicators (IOB, IOC, TTP, IOA) signature, permissions-required
CVE-2026-18721 | CVE Analysis and Report third-party-advisory
Submit #856181 | kalcaddle / kodcloud kodbox 1.67 build 02 Open Redirect third-party-advisory
https://github.com/sjmycz/cve/issues/6 exploit, issue-tracking