CVE-2023-29457 Insufficient validation of Action form input fields
Attackers can execute malicious scripts in victims' browsers via reflected XSS in Zabbix Action form fields, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-29457?
CVE-2023-29457 is a medium-severity cross-site scripting vulnerability in Zabbix, published on 13 Jul 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Reflected XSS attacks, occur when a malicious script is reflected off a web application to the victim's browser. The script can be activated through Action form fields, which can be sent as request to a website with a vulnerability that enables execution of malicious scripts.
Which versions are affected by CVE-2023-29457?
It affects 1 product.
Products include Zabbix Frontend.
How do I fix CVE-2023-29457?
Apply the vendor's patch.
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-2023-29457 being exploited?
There is no known exploitation of CVE-2023-29457 in the wild and no public exploit code.
Other vulnerabilities in Zabbix
- CVE-2023-32725 Leak of zbx_session cookie when using a scheduled report that includes a dashboard with a URL widget.
- CVE-2025-27232 Frontend arbitrary file read in oauth.authorize action
- CVE-2025-49643 Frontend DoS vulnerability due to asymmetric resource consumption
- CVE-2023-29456 Inefficient URL schema validation
- CVE-2023-29454 Persistent XSS in the user form
Sources
Also known as DEBIAN-CVE-2023-29457, GHSA-v4vr-xhx7-pmfv, UBUNTU-CVE-2023-29457.