CVE-2026-43935 e107: Host Header Injection in e107 password reset enables phishing
Attackers can manipulate Host headers in password reset emails to redirect users to malicious sites, enabling phishing and account takeover.
- 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-2026-43935?
CVE-2026-43935 is a high-severity vulnerability in e107inc e107, published on 26 May 2026. 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
e107 is a content management system (CMS). Prior to 2.3.4, a Host Header Injection vulnerability in the password reset page allows attackers to manipulate the Host header to generate password reset links pointing to attacker-controlled domains. This can lead to phishing attacks, account takeover, or other security risks. The severity is high, as the vulnerability affects a critical function related to user authentication. This vulnerability is fixed in 2.3.4.
Which versions are affected by CVE-2026-43935?
How do I fix CVE-2026-43935?
No fix has been published for CVE-2026-43935 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-43935 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-43935 exists.
Sources
Also known as GHSA-7pmw-jwvr-cq2x.