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CVE-2026-43935— e107: Host Header Injection in e107 password reset enables phishing

Quick assessment

Affected
e107inc e107
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

e107是E107团队的一套开源、免费且基于PHP和MySQL的内容管理系统（CMS）。该系统支持多种插件和外观主题，可作为个人博客、讨论社区、档案资料库等。 e107 2.3.4之前版本存在安全漏洞，该漏洞源于密码重置页面存在主机标头注入，攻击者可通过操纵Host标头生成指向攻击者控制域名的密码重置链接，可能导致钓鱼攻击或账户接管。

CVSS 8.1 · High EPSS 0.30% · P22

Affected Version Matrix 1

VendorProduct Version RangeStatus
e107inc e107 < 2.3.4 affected
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I. Basic Information for CVE-2026-43935

Vulnerability Information
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Vulnerability Title
e107: Host Header Injection in e107 password reset enables phishing
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
e107 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
e107是E107团队的一套开源、免费且基于PHP和MySQL的内容管理系统（CMS）。该系统支持多种插件和外观主题，可作为个人博客、讨论社区、档案资料库等。 e107 2.3.4之前版本存在安全漏洞，该漏洞源于密码重置页面存在主机标头注入，攻击者可通过操纵Host标头生成指向攻击者控制域名的密码重置链接，可能导致钓鱼攻击或账户接管。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
e107inc e107 < 2.3.4 -

II. Public POCs for CVE-2026-43935

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III. Intelligence Information for CVE-2026-43935

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Patches & Fixes for CVE-2026-43935 (3)

Vendor Advisories for CVE-2026-43935 (1)

Same Patch Batch · e107inc · 2026-05-26 · 4 CVEs total

CVE-2026-43934 6.5 MEDIUM e107: Broken Access Control in e107 comment edit allows cross-user comment modification
CVE-2026-46620 6.5 MEDIUM e107: CSRF in comment.php moderation endpoints via token-optional validation in session_ha
CVE-2026-43936 4.3 MEDIUM e107: Server-Side Request Forgery (SSRF) in the remote file fetcher

IV. Related Vulnerabilities

Same product: e107
Same vendor: e107inc
Same weakness: CWE-20

V. Comments for CVE-2026-43935

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