How severe is CVE-2025-63891?

CVE-2025-63891 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-63891 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-63891?

CVE-2025-63891 affects Oretnom23 Simple Online Book Store System. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-63891?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-63891 have an EU (EUVD) identifier?

Yes. CVE-2025-63891 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197645.

When was CVE-2025-63891 published?

CVE-2025-63891 was published on 2025-11-14 and last updated on 2026-07-05.

CVE-2025-63891

CVE-2025-63891 is a high-severity vulnerability in Oretnom23 Simple Online Book Store System with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-197645
Weakness: CWE-200
Affected product: Oretnom23 Simple Online Book Store System
Published: 2025-11-14
Last modified: 2026-07-05

Description

Information Disclosure in web-accessible backup file in SourceCodester Simple Online Book Store System allows a remote unauthenticated attacker to disclose full database contents (including schema and credential hashes) via an unauthenticated HTTP GET request to /obs/database/obs_db.sql.

Frequently asked questions

What is CVE-2025-63891?: Information Disclosure in web-accessible backup file in SourceCodester Simple Online Book Store System allows a remote unauthenticated attacker to disclose full database contents (including schema and credential hashes) via an unauthenticated HTTP GET request to /obs/database/obs_db.sql.
How severe is CVE-2025-63891?: CVE-2025-63891 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-63891 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-63891?: CVE-2025-63891 affects Oretnom23 Simple Online Book Store System. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-63891?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-63891 have an EU (EUVD) identifier?: Yes. CVE-2025-63891 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-197645.
When was CVE-2025-63891 published?: CVE-2025-63891 was published on 2025-11-14 and last updated on 2026-07-05.

References

https://github.com/lucascdsm/CVEs/blob/main/CVE-2025-63891.md

EU advisories (EUVD)

Affected products (1)

cpe:2.3:a:oretnom23:simple_online_book_store_system:1.0:*:*:*:*:*:*:*

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