VDB-124708 · CVE-2018-17884 · GCVE-0-2018-17884

Gwolle Guestbook up to 2.5.3 on WordPress gb-dashboard-widget.php PATH_INFO cross site scripting

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.9	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Gwolle Guestbook up to 2.5.3 on WordPress. Affected by this issue is some unknown functionality of the file admin/gb-dashboard-widget.php. Executing a manipulation of the argument PATH_INFO can lead to cross site scripting. This vulnerability appears as CVE-2018-17884. The attack may be performed from remote. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability has been found in Gwolle Guestbook up to 2.5.3 on WordPress (WordPress Plugin) and classified as problematic. This vulnerability affects an unknown part of the file admin/gb-dashboard-widget.php. The manipulation of the argument PATH_INFO with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

XSS exists in admin/gb-dashboard-widget.php in the Gwolle Guestbook (gwolle-gb) plugin before 2.5.4 for WordPress via the PATH_INFO to wp-admin/index.php

The bug was discovered 06/01/2018. The weakness was presented 10/02/2018 (Website). The advisory is shared for download at defensecode.com. This vulnerability was named CVE-2018-17884 since 10/02/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 123 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:admin/gb-dashboard-widget.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.5.4 eliminates this vulnerability.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

WordPress Plugin

Vendor

Gwolle

Name

Guestbook

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.2
VulDB Meta Temp Score: 5.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Guestbook 2.5.4

Timelineinfo

06/01/2018 🔍
10/02/2018 +122 days 🔍
10/02/2018 +0 days 🔍
10/02/2018 +0 days 🔍
10/03/2018 +1 days 🔍
03/29/2020 +543 days 🔍

Sourcesinfo

Advisory: defensecode.com
Status: Not defined

CVE: CVE-2018-17884 (🔍)
GCVE (CVE): GCVE-0-2018-17884
GCVE (VulDB): GCVE-100-124708

Entryinfo

Created: 10/03/2018 07:59
Updated: 03/29/2020 09:28
Changes: 10/03/2018 07:59 (61), 03/29/2020 09:28 (1)
Complete: 🔍
Cache ID: 216::103