Multiple vulnerabilities in Joomla!

Published: 2019-02-14 11:52:08
Severity Low
Patch available YES
Number of vulnerabilities 6
CVE ID CVE-2019-7743
CVE-2019-7740
CVE-2019-7741
CVE-2019-7744
CVE-2019-7739
CVE-2019-7742
CVSSv3 8.5 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
5.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
5.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
5.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
5.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
5.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CWE ID CWE-264
CWE-79
Exploitation vector Network
Public exploit N/A
Vulnerable software Joomla!
Vulnerable software versions Joomla! 3.9.1
Joomla! 3.9.2
Joomla! 3.9.0

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Vendor URL Joomla!

Security Advisory

1) Objection injection attack

Description

The vulnerability allows a remote attacker to conduct objection injection attacks.

The weakness exists due to there is no protection mechanism (such as the TYPO3 PHAR stream wrapper). A remote attacker can use the phar:// handler for non .phar-files and conduct objection injection attacks and perform unauthorized actions.

Remediation

Update to version 3.9.3.

External links

https://developer.joomla.org/security-centre.html

2) Cross-site scripting

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to inadequate parameter handling in JS code. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Update to version 3.9.3.

External links

https://developer.joomla.org/security-centre.html

3) Cross-site scripting

Description

The disclosed vulnerability allows a remote attacker to perform stored cross-site scripting (XSS) attacks.

The vulnerability exists due to inadequate checks at the Global Configuration helpurl settings. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Update to version 3.9.3.

External links

https://developer.joomla.org/security-centre.html

4) Cross-site scripting

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to inadequate filtering on URL fields in various core components. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Update to version 3.9.3.

External links

https://developer.joomla.org/security-centre.html

5) Cross-site scripting

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to "No Filtering" textfilter overrides child settings in the Global Configuration. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Update to version 3.9.3.

External links

https://developer.joomla.org/security-centre.html

6) Cross-site scripting

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to use of specific webserver configurations, in connection with specific file types and browserside mime-type sniffing. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Update to version 3.9.3.

External links

https://developer.joomla.org/security-centre.html