Multiple vulnerabilities in Gila CMS

Published: 2019-10-13 | Updated: 2019-12-05

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2019-17535 CVE-2019-17536
CWE-ID	CWE-79 CWE-434
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Gila CMS Web applications / CMS
Vendor	Gila CMS

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Cross-site scripting

EUVDB-ID: #VU23406

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-17535

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

Exploit availability: No

Description

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

The vulnerability exists due to insufficient sanitization of user-supplied data when processing data passed via the search parameter to blog-list.php. 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Gila CMS: 1.11.1 - 1.11.4

External links

http://github.com/GilaCMS/gila/pull/48
http://rastating.github.io/gila-cms-reflected-xss/

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Arbitrary file upload

EUVDB-ID: #VU23407

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-17536

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file extension within the moveAction() function in core/controllers/fm.php. A remote attacker can upload a malicious file via the admin/media_upload and fm/move and execute arbitrary file on the server.