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Case File

CVE-2021-21260

HIGH · CVSS 7.6 EPSS 0.60% Public Exploit

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2021-01-22 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 7.6. Public exploit code or proof-of-concept references have been detected in its references.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2021-21260
Severity
HIGH
CVSS
7.6
EPSS
0.60%

Original NVD 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.

Related CVEs

Other vulnerabilities affecting the same vendor(s)