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CVE-2026-114728

Quick assessment

Affected
Roundcube Webmail
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.

在 1.6.20 之前以及 1.7.x 系列中 1.7.5 之前的 Roundcube Webmail 存在一个远程内容拦截绕过漏洞，该漏洞源于对 FuncIRI 属性的处理方式。rcube_washtml 在检测 CSS 中的 url() 令牌时，仅通过模式匹配枚举了部分转义形式，导致其他 CSS 转义序列（例如 \000075rl( 或 u\72 l(）未被识别，从而使得 HTML 邮件中的远程内容可在未经用户同意的情况下被加载。上游已在提交"Fix remote content blocking bypass

CVSS 5.3 · Medium

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-114728

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
Roundcube Webmail before 1.6.20 and 1.7.x before 1.7.5 is affected by a remote content blocking bypass in the handling of FuncIRI attributes. rcube_washtml detected the CSS url() token with a pattern that enumerated only some of its escaped spellings, so values using other CSS escape sequences, for example \000075rl( or u\72 l(, were not recognized and remote content was loaded from an HTML message without the user's consent. Upstream fixed this in the commit “Fix remote content blocking bypass via CSS escapes in FuncIRI attributes (again)”, which resolves CSS escapes before matching and also inspects the `to`, `from` and `by` attributes.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
不完整的黑名单
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Roundcube Webmail 1.6.0 ~ 1.6.20 -

II. Public POCs for CVE-2026-114728

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III. Intelligence Information for CVE-2026-114728

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Vendor Advisories for CVE-2026-114728 (2)

Vendor Pages for CVE-2026-114728 (2)

Other References for CVE-2026-114728 (2)

Same Patch Batch · Roundcube · 2026-10-22 · 19 CVEs total

CVE-2026-114716 8.5 HIGH Roundcube 1.6.x/1.7.x 邮件头注入漏洞
CVE-2026-114727 8.3 HIGH Roundcube 1.6.20/1.7.5 前版本 ImageMagick 远程代码执行
CVE-2026-114724 7.4 HIGH Roundcube 1.6.20/1.7.5 前存在对象注入漏洞
CVE-2026-114730 7.2 HIGH Roundcube 1.6/1.7 SSRF 过滤器绕过漏洞
CVE-2026-114720 7.1 HIGH Roundcube 1.6.20/1.7.5 前 IMAP 命令注入漏洞
CVE-2026-114715 6.8 MEDIUM Roundcube 1.6.20/1.7.5 前 Modoboa 驱动越权漏洞
CVE-2026-114732 6.8 MEDIUM Roundcube 1.6.20/1.7.5 多主机认证绕过漏洞
CVE-2026-114722 6.5 MEDIUM Roundcube 1.6.20/1.7.5 前 CSS 作用域绕过漏洞
CVE-2026-114726 5.8 MEDIUM Roundcube 1.6.20/1.7.5 前邮件头注入漏洞
CVE-2026-114729 5.3 MEDIUM Roundcube 1.6.20/1.7.5前版本远程内容拦截绕过漏洞
CVE-2026-114714 5.3 MEDIUM Roundcube 1.6.20/1.7.5 插件路径遍历漏洞
CVE-2026-114731 5.3 MEDIUM Roundcube 1.6.20/1.7.5 前 CSS 代理资源耗尽漏洞
CVE-2026-114725 5.0 MEDIUM Roundcube 1.6.20/1.7.5 邮件头注入漏洞
CVE-2026-114718 4.7 MEDIUM Roundcube 1.6.20/1.7.5 前密码插件跨站脚本漏洞
CVE-2026-114717 4.0 MEDIUM Roundcube 1.6.20/1.7.5 邮件头注入漏洞
CVE-2026-114723 3.7 LOW Roundcube 1.6.20/1.7.5 缩略图生成资源限制绕过漏洞
CVE-2026-114719 3.7 LOW Roundcube 1.6.20/1.7.5 markasjunk 插件 CSRF 绕过漏洞
CVE-2026-114721 3.1 LOW Roundcube 1.6.20/1.7.5 配置绕过漏洞

IV. Related Vulnerabilities

Same product: Webmail
Same vendor: Roundcube
Same weakness: CWE-184

V. Comments for CVE-2026-114728

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