6.1
MEDIUM
CVE-2021-4257
Ctrlo Lenio Cross-Site Scripting Vulnerability
Description

A vulnerability was found in ctrlo lenio. It has been declared as problematic. This vulnerability affects unknown code of the file views/task.tt of the component Task Handler. The manipulation of the argument site.org.name/check.name/task.tasktype.name/task.name leads to cross site scripting. The attack can be initiated remotely. The name of the patch is 698c5fa465169d6f23c6a41ca4b1fc9a7869013a. It is recommended to apply a patch to fix this issue. VDB-216214 is the identifier assigned to this vulnerability.

INFO

Published Date :

Dec. 18, 2022, 10:15 p.m.

Last Modified :

Nov. 21, 2024, 6:37 a.m.

Remotely Exploitable :

Yes !

Impact Score :

2.7

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-4257 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 Ctrlo lenio
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-2021-4257.

URL Resource
https://github.com/ctrlo/lenio/commit/698c5fa465169d6f23c6a41ca4b1fc9a7869013a Patch Third Party Advisory
https://vuldb.com/?id.216214 Permissions Required Third Party Advisory
https://github.com/ctrlo/lenio/commit/698c5fa465169d6f23c6a41ca4b1fc9a7869013a Patch Third Party Advisory
https://vuldb.com/?id.216214 Permissions Required 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).

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

The following list is the news that have been mention CVE-2021-4257 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-4257 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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://github.com/ctrlo/lenio/commit/698c5fa465169d6f23c6a41ca4b1fc9a7869013a
    Added Reference https://vuldb.com/?id.216214
  • CVE Modified by [email protected]

    May. 14, 2024

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

    Jan. 25, 2024

    Action Type Old Value New Value
    Added CWE NIST CWE-79
  • CVE Modified by [email protected]

    Nov. 07, 2023

    Action Type Old Value New Value
    Removed CWE VulDB CWE-79
    Removed CWE VulDB CWE-74
  • Initial Analysis by [email protected]

    Dec. 22, 2022

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
    Changed Reference Type https://github.com/ctrlo/lenio/commit/698c5fa465169d6f23c6a41ca4b1fc9a7869013a No Types Assigned https://github.com/ctrlo/lenio/commit/698c5fa465169d6f23c6a41ca4b1fc9a7869013a Patch, Third Party Advisory
    Changed Reference Type https://vuldb.com/?id.216214 No Types Assigned https://vuldb.com/?id.216214 Permissions Required, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:ctrlo:lenio:*:*:*:*:*:*:*:* versions up to (excluding) 2021-02-08
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-2021-4257 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-2021-4257 weaknesses.

CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS) CAPEC-85: AJAX Footprinting AJAX Footprinting CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch CAPEC-588: DOM-Based XSS DOM-Based XSS CAPEC-591: Reflected XSS Reflected XSS CAPEC-592: Stored XSS Stored XSS CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-83: XPath Injection XPath Injection CAPEC-84: XQuery Injection XQuery Injection CAPEC-250: XML Injection XML Injection CAPEC-276: Inter-component Protocol Manipulation Inter-component Protocol Manipulation CAPEC-277: Data Interchange Protocol Manipulation Data Interchange Protocol Manipulation CAPEC-278: Web Services Protocol Manipulation Web Services Protocol Manipulation CAPEC-279: SOAP Manipulation SOAP Manipulation CAPEC-468: Generic Cross-Browser Cross-Domain Theft Generic Cross-Browser Cross-Domain Theft
Exploit Prediction

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

0.06 }} -0.02%

score

0.16488

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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Latest DB Update: May. 24, 2025 17:55