VDB-187989 · CVE-2021-24857 · GCVE-0-2021-24857

ToTop Link Plugin up to 1.7.1 on WordPress base64 User Input unserialize deserialization

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.
6.1	$0-$5k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in ToTop Link Plugin up to 1.7.1 on WordPress. Affected is the function unserialize of the component base64 User Input Handler. Performing a manipulation results in deserialization. This vulnerability is cataloged as CVE-2021-24857. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in ToTop Link Plugin up to 1.7.1 on WordPress (WordPress Plugin). It has been classified as critical. This affects the function unserialize of the component base64 User Input Handler. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 12/13/2021. The advisory is shared at wpscan.com. This vulnerability is uniquely identified as CVE-2021-24857. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Type

WordPress Plugin

Name

ToTop Link Plugin

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.1
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: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/14/2021 🔍
12/13/2021 +333 days 🔍
12/13/2021 +0 days 🔍
12/15/2021 +2 days 🔍

Sourcesinfo

Advisory: wpscan.com
Status: Not defined

CVE: CVE-2021-24857 (🔍)
GCVE (CVE): GCVE-0-2021-24857
GCVE (VulDB): GCVE-100-187989

Entryinfo

Created: 12/13/2021 14:45
Updated: 12/15/2021 21:44
Changes: 12/13/2021 14:45 (38), 12/15/2021 21:44 (2)
Complete: 🔍
Cache ID: 216::103