CVE-2023-2739 Gira HomeServer hslist cross site scripting
Remote attackers can execute arbitrary scripts in the Gira HomeServer web interface via the hslist endpoint, potentially stealing user cookies.
- 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-2023-2739?
CVE-2023-2739 is a medium-severity cross-site scripting vulnerability in Gira HomeServer, published on 16 May 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
A vulnerability classified as problematic was found in Gira HomeServer up to 4.12.0.220829 beta. This vulnerability affects unknown code of the file /hslist. The manipulation of the argument lst with the input debug%27"><img%20src=x%20onerror=alert(document.cookie)> leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-229150 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-79
Which versions are affected by CVE-2023-2739?
It affects 1 product.
Products include Gira Gira Home Server Firmware.
How do I fix CVE-2023-2739?
No fix has been published for CVE-2023-2739 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-2023-2739 being exploited?
There is no known exploitation of CVE-2023-2739 in the wild and no public exploit code.
Sources
Also known as GHSA-r222-6q9g-76hh.