CVE-2026-46398 HAX CMS Missing Secure Flag on Cookie
Attackers can steal session tokens via network sniffing because the cookie lacks the Secure flag, potentially leading to account takeover.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-46398?
CVE-2026-46398 is a high-severity vulnerability in haxtheweb haxcms-php, published on 5 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Starting in version 25.0.0 and prior to version 26.0.0, the haxcms_refresh_token cookie is set without the Secure flag. This allows it to be transmitted over unencrypted HTTP, making it vulnerable to theft via packet sniffing on the network. Version 26.0.0 fixes the issue.
Weakness: CWE-614
Which versions are affected by CVE-2026-46398?
How do I fix CVE-2026-46398?
No fix has been published for CVE-2026-46398 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-46398 being exploited?
There is no known exploitation of CVE-2026-46398 in the wild and no public exploit code.