VDB-250892 · CVE-2021-24870 · EUVD-2021-11782

WP Fastest Cache Plugin 0.9.5 on WordPress AJAX Action wpfc_save_cdn_integration cross-site request forgery

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.
5.1	$0-$5k	0.00

Summaryinfo

A vulnerability described as problematic has been identified in WP Fastest Cache Plugin 0.9.5 on WordPress. This issue affects the function wpfc_save_cdn_integration of the component AJAX Action Handler. Such manipulation leads to cross-site request forgery. This vulnerability is uniquely identified as CVE-2021-24870. The attack can be launched remotely. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability was found in WP Fastest Cache Plugin 0.9.5 on WordPress (WordPress Plugin). It has been rated as problematic. Affected by this issue is the function wpfc_save_cdn_integration of the component AJAX Action Handler. The manipulation with an unknown input leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity. CVE summarizes:

The WP Fastest Cache WordPress plugin before 0.9.5 is lacking a CSRF check in its wpfc_save_cdn_integration AJAX action, and does not sanitise and escape some the options available via the action, which could allow attackers to make logged in high privilege users call it and set a Cross-Site Scripting payload

The weakness was disclosed 01/16/2024 by Marc Montpas. The advisory is shared for download at wpscan.com. This vulnerability is handled as CVE-2021-24870 since 01/14/2021. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

Upgrading to version 0.9.5 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2021-11782). Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

WordPress Plugin

Name

WP Fastest Cache Plugin

Version

0.9.5

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: 🔍

Exploitinginfo

Class: Cross-site request forgery
CWE: CWE-352 / CWE-862 / CWE-863
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: WP Fastest Cache Plugin 0.9.5

Timelineinfo

01/14/2021 🔍
01/16/2024 +1097 days 🔍
01/16/2024 +0 days 🔍
01/10/2026 +725 days 🔍

Sourcesinfo

Advisory: wpscan.com
Researcher: Marc Montpas
Status: Confirmed

CVE: CVE-2021-24870 (🔍)
GCVE (CVE): GCVE-0-2021-24870
GCVE (VulDB): GCVE-100-250892
EUVD: 🔍

Entryinfo

Created: 01/16/2024 18:27
Updated: 01/10/2026 10:27
Changes: 01/16/2024 18:27 (43), 02/06/2024 14:04 (11), 05/12/2025 19:13 (16), 01/10/2026 10:27 (1)
Complete: 🔍
Cache ID: 216::103