What is the CVSS score of CVE-2020-27957?

CVE-2020-27957 has a CVSS 3.1 base score of 5.4 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N. EPSS exploitation probability: 0.6%.

Is there a public PoC exploit available for CVE-2020-27957?

Yes, a public proof-of-concept exploit is available for CVE-2020-27957. Prioritise patching immediately. EPSS: 0.6%.

Is there a patch available for CVE-2020-27957?

Yes, a patch is available for CVE-2020-27957. Update the affected software to the latest version immediately.

Mediawiki CVE-2020-27957

MEDIUM

Cross-site Scripting (XSS) (CWE-79)

2020-10-28 cve@mitre.org

XSS Mediawiki

5.4

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

5.4 MEDIUM

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

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Lifecycle Timeline

CVE Published

Oct 28, 2020 - 03:15 nvd

MEDIUM 5.4

DescriptionNVD

The RandomGameUnit extension for MediaWiki through 1.35 was not properly escaping various title-related data. When certain varieties of games were created within MediaWiki, their names or titles could be manipulated to generate stored XSS within the RandomGameUnit extension.

AnalysisAI

The RandomGameUnit extension for MediaWiki through 1.35 was not properly escaping various title-related data. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low attack complexity. Public exploit code available.

Technical ContextAI

This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. The RandomGameUnit extension for MediaWiki through 1.35 was not properly escaping various title-related data. When certain varieties of games were created within MediaWiki, their names or titles could be manipulated to generate stored XSS within the RandomGameUnit extension. Affected products include: Mediawiki. Version information: through 1.35.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.