CVSS 3.1
5.4 mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:NCVE-2021-21260
Medium (5.4) in bigprof online invoicing system. EPSS 0.6% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.6% chance of exploitation in the next 30 days; higher than 48% of CVEs (scores of 2026-10-31)
- CWE
- CWE-79
- Published
- Modified
- Record from
- the NVD, synced
Affected
- bigprof:online_invoicing_system
References
- https://github.com/bigprof-software/online-invoicing-system/releases/tag/4.2
- https://github.com/bigprof-software/online-invoicing-system/security/advisories/GHSA-rm79-5596-r7q4
- https://github.com/bigprof-software/online-invoicing-system/releases/tag/4.2
- https://github.com/bigprof-software/online-invoicing-system/security/advisories/GHSA-rm79-5596-r7q4