VULNERABILITY INTELLIGENCE
CVE-2021-21260
CVSS score7.6 HIGH
EPSS probability0.60%
CISA KEVNot currently listed
Published2021-01-22
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:N
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.
Weakness classification
- security-advisories@github.com: CWE-79
Primary references
- security-advisories@github.com — Third Party Advisory
- security-advisories@github.com — Exploit, Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Exploit, Third Party Advisory