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CVE-2021-3694— Cross-site Scripting (XSS) - Reflected in ledgersmb/ledgersmb

Quick assessment

Affected
ledgersmb ledgersmb/ledgersmb
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.

LedgerSMB是一个免费的基于网络的复式记账系统，具有报价、订购、发票、项目、考勤卡、库存管理、运输等功能。 LedgerSMB 存在安全漏洞，该漏洞源于应用没有对发送到浏览器的错误消息进行充分的 HTML 编码。通过向经过身份验证的用户发送特制的 URL，可以利用此漏洞进行远程代码执行和信息泄露。

CVSS 8.2 · High EPSS 2.39% · P83
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I. Basic Information for CVE-2021-3694

Vulnerability Information
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Vulnerability Title
Cross-site Scripting (XSS) - Reflected in ledgersmb/ledgersmb
Source: CVE Program / CVE List V5
Vulnerability Description
LedgerSMB does not sufficiently HTML-encode error messages sent to the browser. By sending a specially crafted URL to an authenticated user, this flaw can be abused for remote code execution and information disclosure.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
Vulnerability Title
LedgerSMB 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LedgerSMB是一个免费的基于网络的复式记账系统，具有报价、订购、发票、项目、考勤卡、库存管理、运输等功能。 LedgerSMB 存在安全漏洞，该漏洞源于应用没有对发送到浏览器的错误消息进行充分的 HTML 编码。通过向经过身份验证的用户发送特制的 URL，可以利用此漏洞进行远程代码执行和信息泄露。
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

Vendor Product Affected Versions CPE Subscribe
ledgersmb ledgersmb/ledgersmb 1.7.33 -

II. Public POCs for CVE-2021-3694

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III. Intelligence Information for CVE-2021-3694

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Patches & Fixes for CVE-2021-3694 (1)

Vendor Advisories for CVE-2021-3694 (2)

Other References for CVE-2021-3694 (1)

Same Patch Batch · ledgersmb · 2021-08-23 · 3 CVEs total

CVE-2021-3693 8.8 HIGH Cross-site Scripting (XSS) - DOM in ledgersmb/ledgersmb
CVE-2021-3731 5.9 MEDIUM Improper Restriction of Rendered UI Layers or Frames in ledgersmb/ledgersmb

IV. Related Vulnerabilities

Same product: ledgersmb/ledgersmb
Same vendor: ledgersmb
Same weakness: CWE-79

V. Comments for CVE-2021-3694

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