# CVE-2025-63891: SourceCodester Simple Online Book Store System information disclosure in backup file

Source: https://junglewise.ai/threats/cve-2025-63891-sourcecodester-simple-online-book-store-system-information  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-14. Updated: 2026-07-05  
License: CC BY 4.0 with a link back

CVE-2025-63891 · Severity: high · CVSS 7.5 · Published 2025-11-14

The Simple Online Book Store System, a web application for managing book sales, contains a security flaw where a database backup file is publicly accessible. An unauthorized person can download this file over the internet without needing a password. This allows them to view the entire database, including sensitive information like user account details and password hashes, which could lead to full account takeovers.

Vendors: [Oretnom23](https://junglewise.ai/threats/vendors/oretnom23).

## Quick answers

**Is CVE-2025-63891 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-63891 being exploited in the wild.

**How severe is CVE-2025-63891?** High severity, with a CVSS score of 7.5, published 14 November 2025.

**Which products and versions are affected?** SourceCodester Simple Online Book Store System 1.0.

**Is there a fix for CVE-2025-63891?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2025-63891 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2025-63891?** Check whether you run Oretnom23 Simple Online Book Store System. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

An information disclosure vulnerability exists in SourceCodester Simple Online Book Store System 1.0 due to improper access control on sensitive files. The application stores a full SQL database backup in a predictable, web-accessible directory (/obs/database/obs_db.sql) without requiring authentication. A remote attacker can exploit this by sending a simple HTTP GET request to the file path. Successful exploitation grants the attacker access to the entire database schema, administrative credentials (in hashed format), and other stored sensitive data. As of the advisory date, there is no mention of a formal patch; administrators should restrict access to the /database directory or remove the SQL file from the web root.

## Affected products

- SourceCodester Simple Online Book Store System 1.0

## Timeline

- 2025-11-14: advisory: CVE-2025-63891 published by NVD/MITRE

## References

- [http://sourcecodester.com/](http://sourcecodester.com/)
- [https://github.com/lucascdsm/CVEs/blob/main/CVE-2025-63891.md](https://github.com/lucascdsm/CVEs/blob/main/CVE-2025-63891.md)