CVE-2025-34308 IPFire < v2.29 Stored XSS via Default Time Sync
An authenticated attacker can inject arbitrary JavaScript into IPFire's time sync settings, leading to script execution in other users' browsers.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2025-34308?
CVE-2025-34308 is a medium-severity cross-site scripting vulnerability in IPFire.org IPFire, published on 28 Oct 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
IPFire versions prior to 2.29 (Core Update 198) contain a stored cross-site scripting (XSS) vulnerability that allows an authenticated attacker to inject arbitrary JavaScript code through the UPDATE_VALUE parameter when updating the default time synchronization settings. When the default values displayed on the Time Server page are updated, the application issues an HTTP POST request to /cgi-bin/time.cgi, and the synchronization value is provided in the UPDATE_VALUE parameter. The value of this parameter is stored and later rendered in the web interface without proper sanitation or encoding, allowing injected scripts to execute in the context of other users who view the affected Time Server configuration page.
Weakness: CWE-79
Which versions are affected by CVE-2025-34308?
It affects 1 product.
Products include Ipfire Ipfire.
How do I fix CVE-2025-34308?
No fix has been published for CVE-2025-34308 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-2025-34308 being exploited?
There is no known exploitation of CVE-2025-34308 in the wild and no public exploit code.
Other vulnerabilities in IPFire.org IPFire
Sources
Also known as GHSA-xm48-7mjf-v22c.