CVE-2018-11627

rubygem-sinatra: XSS in the 400 Bad Request page

Severity Score

6.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Sinatra before 2.0.2 has XSS via the 400 Bad Request page that occurs upon a params parser exception.

Sinatra en versiones anteriores a la 2.0.2 tiene Cross-Site Scripting (XSS) a través de la página 400 Bad Request que se produce en una excepción del analizador de parámetros.

Red Hat CloudForms Management Engine delivers the insight, control, and automation needed to address the challenges of managing virtual environments. CloudForms Management Engine is built on Ruby on Rails, a model-view-controller framework for web application development. Action Pack implements the controller and the view components. Issues addressed include a cross site scripting vulnerability.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

Low

Integrity

Low

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2018-05-31 CVE Reserved
2018-05-31 CVE Published
2024-08-05 CVE Updated
2024-08-05 First Exploit
2025-04-03 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

CAPEC

References (6)

URL	Tag	Source

URL	Date	SRC
https://github.com/sinatra/sinatra/issues/1428	2024-08-05

URL	Date	SRC
https://github.com/sinatra/sinatra/commit/12786867d6faaceaec62c7c2cb5b0e2dc074d71a	2019-02-26

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:0212	2019-02-26
https://access.redhat.com/errata/RHSA-2019:0315	2019-02-26
https://access.redhat.com/security/cve/CVE-2018-11627	2019-02-12
https://bugzilla.redhat.com/show_bug.cgi?id=1585218	2019-02-12

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Sinatrarb Search vendor "Sinatrarb"		Sinatra Search vendor "Sinatrarb" for product "Sinatra"				< 2.0.2 Search vendor "Sinatrarb" for product "Sinatra" and version " < 2.0.2"		-		Affected
Redhat Search vendor "Redhat"		Cloudforms Search vendor "Redhat" for product "Cloudforms"				4.6 Search vendor "Redhat" for product "Cloudforms" and version "4.6"		-		Affected
Redhat Search vendor "Redhat"		Cloudforms Search vendor "Redhat" for product "Cloudforms"				4.7 Search vendor "Redhat" for product "Cloudforms" and version "4.7"		-		Affected