High severity · published May 26, 2026
CVE-2026-43935
e107: Host Header Injection in e107 password reset enables phishing
8.1
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 22% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
E1
e107 · e107inc
< 2.3.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-43935
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-43935
github.com
https://github.com/e107inc/e107/commit/04511f9f1d6e97c31ba7cc5bf7f1f9a19d221db6
github.com
https://github.com/e107inc/e107/commit/b0dee8234e273debbf7a8ae054de464f1008f357
github.com
https://github.com/e107inc/e107/commit/c4f9f71b0fd695545d0f09e2277b6f70ff4660fc
github.com
https://github.com/e107inc/e107/security/advisories/GHSA-7pmw-jwvr-cq2x
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