8.8
HIGH
CVE-2021-24356
WordPress BetterLinks Plugin Unauthenticated Plugin Activation Vulnerability
Description

In the Simple 301 Redirects by BetterLinks WordPress plugin before 2.0.4, a lack of capability checks and insufficient nonce check on the AJAX action, simple301redirects/admin/activate_plugin, made it possible for authenticated users to activate arbitrary plugins installed on vulnerable sites.

INFO

Published Date :

June 14, 2021, 2:15 p.m.

Last Modified :

Dec. 9, 2022, 4:02 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.8
Public PoC/Exploit Available at Github

CVE-2021-24356 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2021-24356 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Wpdeveloper simple_301_redirects
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-24356.

URL Resource
https://wpscan.com/vulnerability/be356530-5e00-4f27-8177-b80f3c1ae6e8 Exploit Third Party Advisory
https://www.wordfence.com/blog/2021/05/severe-vulnerabilities-patched-in-simple-301-redirects-by-betterlinks-plugin/ Exploit Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Simple 301 Redirects by BetterLinks - 2.0.0 – 2.0.3 - Subscriber + Arbitrary Plugin Installation

wordpress-exploit wordpress-plugin cve-2021-24356

Python

Updated: 3 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : Aug. 9, 2023, 6:24 p.m. This repo has been linked 1 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-24356 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-24356 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Dec. 09, 2022

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jul. 29, 2022

    Action Type Old Value New Value
    Removed CWE WPScan CWE-284
    Added CWE WPScan CWE-862
    Removed CWE Reason CWE-284 / More specific CWE option available
  • Reanalysis by [email protected]

    Jul. 28, 2022

    Action Type Old Value New Value
    Added CWE NIST CWE-862
  • Initial Analysis by [email protected]

    Jun. 21, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://wpscan.com/vulnerability/be356530-5e00-4f27-8177-b80f3c1ae6e8 No Types Assigned https://wpscan.com/vulnerability/be356530-5e00-4f27-8177-b80f3c1ae6e8 Exploit, Third Party Advisory
    Changed Reference Type https://www.wordfence.com/blog/2021/05/severe-vulnerabilities-patched-in-simple-301-redirects-by-betterlinks-plugin/ No Types Assigned https://www.wordfence.com/blog/2021/05/severe-vulnerabilities-patched-in-simple-301-redirects-by-betterlinks-plugin/ Exploit, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:wpdeveloper:simple_301_redirects:*:*:*:*:*:wordpress:*:* versions from (including) 2.0.0 up to (excluding) 2.0.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-24356 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-24356 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.11 }} 0.00%

score

0.45645

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability