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CVE-2026-48843

CVSS 7.2 · High EPSS 0.03% · P9

Affected Version Matrix 2

VendorProductVersion RangeStatus
RoundcubeWebmail1.6.14< 1.6.16affected
1.7.0< 1.7.1affected
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I. Basic Information for CVE-2026-48843

Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Roundcube Webmail 1.6.x between 1.6.14 and 1.6.16,and 1.7.x before 1.7.1 has Insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. The issue stems from an insufficient fix for CVE-2026-35540.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Roundcube Webmail 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Roundcube Webmail是Roundcube开源的一款基于浏览器的开源IMAP客户端，它支持地址薄管理、信息搜索、拼写检查等。 Roundcube Webmail 1.6.x 1.6.14至1.6.16版本和1.7.x 1.7.1之前版本存在代码问题漏洞，该漏洞源于HTML邮件中CSS清理不足，可能导致SSRF或信息泄露。
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

VendorProductAffected VersionsCPESubscribe
RoundcubeWebmail 1.6.14 ~ 1.6.16 -

II. Public POCs for CVE-2026-48843

#POC DescriptionSource LinkShenlong Link
AI-Generated POCPremium
Qwen3.6-35B-A3B · 8023 chars
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III. Intelligence Information for CVE-2026-48843

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Patches & Fixes for CVE-2026-48843 (2)

Vendor Advisories for CVE-2026-48843 (1)

Vendor Pages for CVE-2026-48843 (2)

Same Patch Batch · Roundcube · 2026-05-25 · 8 CVEs total

CVE-2026-488428.1 HIGHRoundcube Webmail SQL注入漏洞
CVE-2026-488447.5 HIGHRoundcube Webmail 安全漏洞
CVE-2026-488487.2 HIGHRoundcube Webmail 跨站脚本漏洞
CVE-2026-488466.5 MEDIUMRoundcube Webmail 安全漏洞
CVE-2026-488456.5 MEDIUMRoundcube Webmail 安全漏洞
CVE-2026-488494.4 MEDIUMRoundcube Webmail 跨站脚本漏洞
CVE-2026-488473.7 LOWRoundcube Webmail 安全漏洞

IV. Related Vulnerabilities

Same product: Webmail
Same vendor: Roundcube
Same weakness: CWE-918

V. Comments for CVE-2026-48843

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