VDB-172776 · CVE-2021-24225 · ID 2503971

Advanced Booking Calendar Plugin up to 1.6.6 on WordPress GET Parameter calId 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.
3.4	$0-$5k	0.00

A vulnerability, which was classified as problematic, was found in Advanced Booking Calendar Plugin up to 1.6.6 on WordPress (Calendar Software). Affected is some unknown functionality of the component GET Parameter Handler. The manipulation of the argument calId 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.

The weakness was released 04/12/2021. The advisory is shared for download at wpscan.com. This vulnerability is traded as CVE-2021-24225. 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.

Upgrading to version 1.6.7 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at plugins.trac.wordpress.org. The best possible mitigation is suggested to be upgrading to the latest version.

Productinfo

Type

Calendar Software

Name

Advanced Booking Calendar Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

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

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: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-74 / CWE-707
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 Booking Calendar Plugin 1.6.7
Patch: plugins.trac.wordpress.org

Timelineinfo

01/14/2021 🔍
04/12/2021 +87 days 🔍
04/12/2021 +0 days 🔍
04/16/2021 +4 days 🔍

Sourcesinfo

Advisory: 2503971
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-24225 (🔍)

Entryinfo

Created: 04/12/2021 19:51
Updated: 04/16/2021 07:29
Changes: 04/12/2021 19:51 (41), 04/16/2021 07:29 (7)
Complete: 🔍