What is the CVSS score of CVE-2019-16738?

CVE-2019-16738 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.4%.

Is there a public PoC exploit available for CVE-2019-16738?

Yes, a public proof-of-concept exploit is available for CVE-2019-16738. Prioritise patching immediately. EPSS: 0.4%.

Is there a patch available for CVE-2019-16738?

Yes, a patch is available for CVE-2019-16738. Update the affected software to the latest version immediately.

Mediawiki CVE-2019-16738

MEDIUM

Missing Authorization (CWE-862)

2019-09-26 cve@mitre.org

Information Disclosure Authentication Bypass Mediawiki Fedora Debian Linux

5.3

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Lifecycle Timeline

CVE Published

Sep 26, 2019 - 02:15 cve.org

MEDIUM 5.3

DescriptionCVE.org

In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup.

AnalysisAI

In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup. Rated medium severity (CVSS 5.3), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. In MediaWiki through 1.33.0, Special:Redirect allows information disclosure of suppressed usernames via a User ID Lookup. Affected products include: Mediawiki, Fedoraproject Fedora, Debian Debian Linux. Version information: through 1.33.0.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.