Is CVE-2026-43935 actively exploited?

No active exploitation of CVE-2026-43935 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-43935 be exploited remotely?

Yes. CVE-2026-43935 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-43935?

CVE-2026-43935 has a CVSS score of 8.1 (HIGH).

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HIGH

CVE-2026-43935

CWE-20Published: May 26, 2026· Updated: May 26, 2026

8.1

CVSS v3.1

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.

NVD Source

Technical Analysis

CVE-2026-43935 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), with a CVSS base score of 8.1.