CVE-2021-3539— EspoCRM Avatar Persistent XSS
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I. Basic Information for CVE-2021-3539
Vulnerability Information
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Vulnerability Title
EspoCRM Avatar Persistent XSS
Source: NVD (National Vulnerability Database)
Vulnerability Description
EspoCRM 6.1.6 and prior suffers from a persistent (type II) cross-site scripting (XSS) vulnerability in processing user-supplied avatar images. This issue was fixed in version 6.1.7 of the product.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
EspoCRM 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
EspoCRM是一套开源的基于Web的客户关系管理系统（CRM）。该系统提供销售自动化、社区和客户支持等功能。 EspoCRM 6.1.6及之前版本存在安全漏洞，该漏洞源于处理用户提供的头像图像时存在一个持久(II类)跨站脚本(XSS)漏洞。该问题已在6.1.7版本中修复.
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
II. Public POCs for CVE-2021-3539
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IV. Related Vulnerabilities
Same product: EspoCRM
- CVE-2026-33733
EspoCRM has Admin TemplateManager path traversal that allows - CVE-2026-33656
EspoCRM vulnerable to authenticated RCE via Formula with pat - CVE-2026-33740
EspoCRM: Email importEml can import and delete another user' - CVE-2026-33659
EspoCRM: SSRF via DNS Rebinding in Attachment fromImageUrl E - CVE-2026-33657
EspoCRM: Stored HTML injection in email notifications about
Same vendor: EspoCRM
- CVE-2026-33733
EspoCRM has Admin TemplateManager path traversal that allows - CVE-2026-33656
EspoCRM vulnerable to authenticated RCE via Formula with pat - CVE-2026-33740
EspoCRM: Email importEml can import and delete another user' - CVE-2026-33659
EspoCRM: SSRF via DNS Rebinding in Attachment fromImageUrl E - CVE-2026-33657
EspoCRM: Stored HTML injection in email notifications about
Same weakness: CWE-79
- CVE-2026-8262
Devs Palace ERP Online chart-save cross site scripting - CVE-2026-8256
Devs Palace ERP Online mr-save cross site scripting - CVE-2026-8255
Devs Palace ERP Online add_new_customer cross site scripting - CVE-2026-8254
Devs Palace ERP Online sales_save cross site scripting - CVE-2026-8253
Devs Palace ERP Online purchase_save cross site scripting
V. Comments for CVE-2021-3539
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