CVE-2021-21260 XSS in description field
Stored XSS in the item description field allows attackers to steal CSRF tokens and take over admin accounts in the Online Invoicing System.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-21260?
CVE-2021-21260 is a high-severity cross-site scripting vulnerability in bigprof-software online-invoicing-system, published on 22 Jan 2021. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official 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: CWE-79
Which versions are affected by CVE-2021-21260?
It affects 1 product.
Products include Bigprof Online Invoicing System.
How do I fix CVE-2021-21260?
No fix has been published for CVE-2021-21260 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2021-21260 being exploited?
There is no known exploitation of CVE-2021-21260 in the wild and no public exploit code.
Other vulnerabilities in bigprof-software online-invoicing-system
Sources
Also known as GHSA-rm79-5596-r7q4.