CVE-2018-5143

Severity Score

6.1

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

URLs using "javascript:" have the protocol removed when pasted into the addressbar to protect users from cross-site scripting (XSS) attacks, but if a tab character is embedded in the "javascript:" URL the protocol is not removed and the script will execute. This could allow users to be socially engineered to run an XSS attack against themselves. This vulnerability affects Firefox < 59.

Las URL que utilizan "javascript:" eliminan el protocolo cuando se pega en la barra de direcciones para proteger a los usuarios de ataques Cross-Site Scripting (XSS), pero si hay un carácter de tabulación incrustado en la URL "javascript:", el protocolo no se elimina y el script se ejecutará. Esto podría permitir que se realice ingeniería social sobre los usuarios para ejecutar un ataque Cross-Site Scripting (XSS) contra ellos mismos. Esta vulnerabilidad afecta a las versiones anteriores a la 59 de Firefox.

*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

2018-01-03 CVE Reserved
2018-03-14 CVE Published
2023-11-02 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

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

CAPEC

References (5)

URL	Tag	Source
http://www.securityfocus.com/bid/103386	Third Party Advisory
http://www.securitytracker.com/id/1040514	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://bugzilla.mozilla.org/show_bug.cgi?id=1422643	2018-08-02
https://usn.ubuntu.com/3596-1	2018-08-02
https://www.mozilla.org/security/advisories/mfsa2018-06	2018-08-02

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				< 59.0 Search vendor "Mozilla" for product "Firefox" and version " < 59.0"		-		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				14.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "14.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04"		lts		Affected
Canonical Search vendor "Canonical"		Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux"				17.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "17.10"		-		Affected