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CVE-2026-35538

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.

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 1.5.14之前版本和1.6.14之前版本存在参数注入漏洞，该漏洞源于未清理IMAP SEARCH命令参数，可能导致IMAP注入或跨站请求伪造绕过。

CVSS 3.1 · Low EPSS 0.36% · P28
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I. Basic Information for CVE-2026-35538

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
An issue was discovered in Roundcube Webmail before 1.5.14 and 1.6.14. Unsanitized IMAP SEARCH command arguments could lead to IMAP injection or CSRF bypass during mail search.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
Roundcube Webmail 参数注入漏洞
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 1.5.14之前版本和1.6.14之前版本存在参数注入漏洞，该漏洞源于未清理IMAP SEARCH命令参数，可能导致IMAP注入或跨站请求伪造绕过。
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
Roundcube Webmail 0 ~ 1.5.14 -

II. Public POCs for CVE-2026-35538

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III. Intelligence Information for CVE-2026-35538

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Patches & Fixes for CVE-2026-35538 (3)

Vendor Advisories for CVE-2026-35538 (1)

Vendor Pages for CVE-2026-35538 (3)

Same Patch Batch · Roundcube · 2026-04-03 · 9 CVEs total

CVE-2026-35539 6.1 MEDIUM Roundcube Webmail 跨站脚本漏洞
CVE-2026-35540 5.4 MEDIUM Roundcube Webmail 安全漏洞
CVE-2026-35543 5.3 MEDIUM Roundcube Webmail 安全漏洞
CVE-2026-35545 5.3 MEDIUM Roundcube Webmail 安全漏洞
CVE-2026-35544 5.3 MEDIUM Roundcube Webmail 安全漏洞
CVE-2026-35542 5.3 MEDIUM Roundcube Webmail 安全漏洞
CVE-2026-35541 4.2 MEDIUM Roundcube Webmail 安全漏洞
CVE-2026-35537 3.7 LOW Roundcube Webmail 代码问题漏洞

IV. Related Vulnerabilities

Same product: Webmail
Same vendor: Roundcube
Same weakness: CWE-88

V. Comments for CVE-2026-35538

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