CVE-2023-28799

A URL parameter during login flow was vulnerable to injection. An attacker could insert a...

8.2 High

A URL parameter during login flow was vulnerable to injection. An attacker could insert a malicious domain in this parameter, which would redirect the user after auth and send the authorization token to the redirected domain.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: High
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: None

Exploit likelihood

0.45%Up 0.4 points since Jun 23, 2023

What each source reports

CVE List Score used 8.2

Record: CVE-2023-28799
CVSS 3.1: 8.2 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Weakness: CWE-1287
Updated: 2026-11-02

EUVDEUVD-2023-32434 8.2

Record: EUVD-2023-32434
CVSS 3.1: 8.2 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Updated: 2026-11-03

GitHub AdvisoriesGHSA-frc9-g2r4-48w5 8.2

A URL parameter during login flow was vulnerable to injection. An attacker could insert a...

Record: GHSA-frc9-g2r4-48w5
CVSS 3.1: 8.2 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
Weakness: CWE-20, CWE-601, CWE-1287
Updated: 2026-11-02

NVD 8.2

Record: CVE-2023-28799
CVSS 3.1: 8.2 HighCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS 3.1: 6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness: CWE-1287, CWE-601
Updated: 2026-11-02

Affected products

zscaler client connector

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases, published	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2023-28799 is a high vulnerability (CVSS 8.2) in Zscaler Client Connector, published June 22, 2023. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. No source names a fixed version.