Executive brief
SourceCodester Indian Invoicing System 1.0 is vulnerable to a security flaw that allows attackers to execute malicious scripts in a user's browser. This occurs because the application does not properly sanitize messages displayed on the category management page. An attacker could use this to steal session information or perform unauthorized actions on behalf of a legitimate user.
Technical details
A reflected cross-site scripting (XSS) vulnerability exists in SourceCodester Indian Invoicing System 1.0 within the /Invoicing/category.php file. The application fails to sanitize the 'msg' GET parameter before reflecting it into the HTML response, allowing for the execution of arbitrary JavaScript. Additionally, the same endpoint is reportedly vulnerable to SQL injection via search filter fields due to the lack of prepared statements. An unauthenticated remote attacker can exploit the XSS vulnerability by tricking a user into clicking a specially crafted link, potentially leading to session hijacking or unauthorized data modification. As of the advisory date, no official patch is available.
Affected products
- SourceCodester Indian Invoicing System 1.0
Timeline
- 2026-04-26: other: Vulnerability discovered and PoC created by researcher c4ttr4ck
- 2026-05-25: disclosed: Vulnerability published on NVD and VulDB