CVE-2023-28800 Output encoding missing in redrurl parameter
Attackers can execute XSS via the redirect URL parameter in the admin login interface, potentially compromising administrator accounts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2023-28800?
CVE-2023-28800 is a high-severity cross-site scripting vulnerability in Zscaler Client Connector, published on 22 Jun 2023. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
When using local accounts for administration, the redirect url parameter was not encoded correctly, allowing for an XSS attack providing admin login.
Weakness: CWE-79
Which versions are affected by CVE-2023-28800?
It affects 1 product.
Products include Zscaler Client Connector.
How do I fix CVE-2023-28800?
No fix has been published for CVE-2023-28800 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2023-28800 being exploited?
There is no known exploitation of CVE-2023-28800 in the wild and no public exploit code.
Other vulnerabilities in Zscaler Client Connector
- CVE-2020-11633 Memory corruption in n/a
- CVE-2024-23463 Anti-Tampering bypass via Repair App functionality
- CVE-2023-28804 Linux ZCC allows unsigned updates, allowing elevated Code Execution
- CVE-2023-28799 Open redirect in Client Connector
- CVE-2024-23456 Signature validation issue leads to Anti-Tampering bypass
Sources
Also known as GHSA-crh5-rq78-8m4h.