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CVE-2021-21260— XSS in description field

Quick assessment

Affected
bigprof-software online-invoicing-system
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.

BigProf Online Invoicing System（OIS）是一套在线发票系统。 Online Invoicing System (OIS) 存在跨站脚本漏洞，攻击者可利用该漏洞通过提取csrf令牌并发送更改密码请求接管管理帐户。

CVSS 7.6 · High EPSS 0.60% · P46
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I. Basic Information for CVE-2021-21260

Vulnerability Information
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Vulnerability Title
XSS in description field
Source: CVE Program / CVE List V5
Vulnerability Description
Online Invoicing System (OIS) is open source software which is a lean invoicing system for small businesses, consultants and freelancers created using AppGini. In OIS version 4.0 there is a stored XSS which can enables an attacker takeover of the admin account through a payload that extracts a csrf token and sends a request to change password. It has been found that Item description is reflected without sanitization in app/items_view.php which enables the malicious scenario.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/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
BigProf Online Invoicing System 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BigProf Online Invoicing System（OIS）是一套在线发票系统。 Online Invoicing System (OIS) 存在跨站脚本漏洞，攻击者可利用该漏洞通过提取csrf令牌并发送更改密码请求接管管理帐户。
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
bigprof-software online-invoicing-system = 4.0 -

II. Public POCs for CVE-2021-21260

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III. Intelligence Information for CVE-2021-21260

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Vendor Advisories for CVE-2021-21260 (1)

IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2021-21260

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