VDB-186860 · CVE-2021-41252 · GHSA-x7j7-qp7j-hw3q

Kirby up to 3.5.7 API 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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Kirby up to 3.5.7. This vulnerability affects unknown code of the component API. Such manipulation leads to cross site scripting. This vulnerability is referenced as CVE-2021-41252. It is possible to launch the attack remotely. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Kirby up to 3.5.7. Affected by this issue is some unknown functionality of the component API. The manipulation with an unknown input leads to a cross site scripting vulnerability. Using CWE to declare the problem leads to 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. Impacted is integrity.

The weakness was published 11/18/2021 as GHSA-x7j7-qp7j-hw3q. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-41252 since 09/15/2021. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 3.5.8 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 25fc5c6b330442e6433c99befc688f3698c5d1fc is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

Kirby

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.4
VulDB Meta Temp Score: 5.4

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

NVD Base Score: 5.4
NVD Vector: 🔍

CNA Base Score: 7.3
CNA Vector (GitHub, Inc.): 🔍

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: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
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: Kirby 3.5.8
Patch: 25fc5c6b330442e6433c99befc688f3698c5d1fc

Timelineinfo

09/15/2021 🔍
11/18/2021 +64 days 🔍
11/18/2021 +0 days 🔍
11/21/2021 +3 days 🔍

Sourcesinfo

Advisory: GHSA-x7j7-qp7j-hw3q
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-41252 (🔍)
GCVE (CVE): GCVE-0-2021-41252
GCVE (VulDB): GCVE-100-186860

Entryinfo

Created: 11/18/2021 08:10
Updated: 11/21/2021 14:46
Changes: 11/18/2021 08:10 (52), 11/21/2021 14:40 (2), 11/21/2021 14:43 (17), 11/21/2021 14:46 (1)
Complete: 🔍
Cache ID: 216::103