CVE-2018-1000078

MEDIUM

RubyGems Cross-site Scripting vulnerability

Published May 14, 2022Updated March 13, 2024Source: osv

Summary

RubyGems version Ruby 2.2 series: 2.2.9 and earlier, Ruby 2.3 series: 2.3.6 and earlier, Ruby 2.4 series: 2.4.3 and earlier, Ruby 2.5 series: 2.5.0 and earlier, prior to trunk revision 62422 contains a Cross Site Scripting (XSS) vulnerability in gem server display of homepage attribute that can result in XSS. This attack requires the victim to browse to a malicious gem on a vulnerable gem server. This vulnerability is fixed in 2.7.6.

Remediation

Upgrade to the fixed version using your package manager.

Bundler

Update rubygems-update to 2.7.6 or later

gem install rubygems-update -v 2.7.6

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (1)

Package	Ecosystem	Affected	Fixed In
rubygems-update	rubygems	0.8.10, 0.8.11, 0.8.3, 0.8.4 (+144 more)	2.7.6

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CWE-79
Cross-site Scripting (XSS)MITRE

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 6.1 score means for each attack dimension.

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Frequently Asked Questions

What is CVE-2018-1000078?: RubyGems Cross-site Scripting vulnerability This vulnerability has been assigned a severity rating of MEDIUM (CVSS score: 6.1/10).
How do I check if my project is affected by CVE-2018-1000078?: CVE-2018-1000078 affects rubygems-update. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2018-1000078 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score

6.1

Exploitation requires specific conditions or has limited impact. Remediate within weeks.

Also Known As

GHSA-87qx-g5wg-mwmj

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