Multiple vulnerabilities in Avada WordPress theme



Published: 2020-05-04
Risk Medium
Patch available YES
Number of vulnerabilities 3
CVE-ID N/A
CWE-ID CWE-79
CWE-264
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Avada
Web applications / Modules and components for CMS

Vendor ThemeFusion

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Stored cross-site scripting

EUVDB-ID: #VU27490

Risk: Low

CVSSv3.1: 5.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

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

Exploit availability: No

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data in the "update_layout" function in the "fusion-builder/inc/class-fusion-builder-library.php" script. A remote authenticated attacker can inject 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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Avada: before 6.2.3

External links

http://wpvulndb.com/vulnerabilities/10209/
http://blog.nintechnet.com/avada-wordpress-theme-fixed-multiple-vulnerabilities/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU27491

Risk: Medium

CVSSv3.1: 6.2 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper permissions checks in the "delete_layout" function. A remote authenticated attacker can delete any post or page on the website.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Avada: before 6.2.3

External links

http://wpvulndb.com/vulnerabilities/10209/
http://blog.nintechnet.com/avada-wordpress-theme-fixed-multiple-vulnerabilities/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU27492

Risk: Medium

CVSSv3.1: 6.6 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to improper permissions checks in the "fusion_builder_save_layout" AJAX action used to call the "save_layout" function. A remote authenticated attacker can create a post, select several parameters (post type, post status, slug etc), as well as inject JavaScript code with the [fusion_code] attribute.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Avada: before 6.2.3

External links

http://wpvulndb.com/vulnerabilities/10209/
http://blog.nintechnet.com/avada-wordpress-theme-fixed-multiple-vulnerabilities/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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