VDB-140652 · CVE-2018-20986 · GCVE-0-2018-20986

advanced-custom-fields Plugin up to 5.7.7 on WordPress Author 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.
4.4	$0-$5k	0.00

A vulnerability classified as problematic has been found in advanced-custom-fields Plugin up to 5.7.7 on WordPress (WordPress Plugin). Affected is an unknown functionality of the component Author Handler. The manipulation with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity. CVE summarizes:

The advanced-custom-fields plugin before 5.7.8 for WordPress has XSS by authors.

The weakness was disclosed 08/22/2019. This vulnerability is traded as CVE-2018-20986 since 08/21/2019. It is possible to launch the attack remotely. The successful exploitation needs a authentication. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 5.7.8 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

WordPress Plugin

Name

advanced-custom-fields Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.4
VulDB Meta Temp Score: 4.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.4
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: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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: advanced-custom-fields Plugin 5.7.8

Timelineinfo

08/21/2019 🔍
08/22/2019 +1 days 🔍
08/23/2019 +1 days 🔍
12/01/2023 +1561 days 🔍

Sourcesinfo

Advisory: wordpress.org
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-20986 (🔍)
GCVE (CVE): GCVE-0-2018-20986
GCVE (VulDB): GCVE-100-140652

Entryinfo

Created: 08/23/2019 08:58 AM
Updated: 12/01/2023 09:02 AM
Changes: 08/23/2019 08:58 AM (55), 08/03/2020 04:35 PM (1), 12/01/2023 09:02 AM (4)
Complete: 🔍
Cache ID: 18:AF6:40