BlackCat CMS 1.3.6 ajax_save.php Display Name cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
3.2$0-$5k0.00

Summaryinfo

A vulnerability has been found in BlackCat CMS 1.3.6 and classified as problematic. This vulnerability affects unknown code of the file backend/preferences/ajax_save.php. Performing a manipulation of the argument Display Name results in cross site scripting. This vulnerability is cataloged as CVE-2021-27237. It is possible to initiate the attack remotely. Furthermore, there is an exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability classified as problematic has been found in BlackCat CMS 1.3.6 (Content Management System). This affects an unknown part of the file backend/preferences/ajax_save.php. The manipulation of the argument Display Name with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as 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. This is going to have an impact on integrity.

The weakness was shared 02/17/2021 as 49565. It is possible to read the advisory at exploit-db.com. This vulnerability is uniquely identified as CVE-2021-27237. It demands that the victim is doing some kind of user interaction. Technical details and a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

The exploit is shared for download at exploit-db.com. It is declared as proof-of-concept. By approaching the search of inurl:backend/preferences/ajax_save.php it is possible to find vulnerable targets with Google Hacking.

Upgrading eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be patching the affected component.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49565). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.6
VulDB Meta Temp Score: 3.5

VulDB Base Score: 2.4
VulDB Temp Score: 2.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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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: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍
Google Hack: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Exploit-DB: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Upgrade: github.com
Patch: github.com

Timelineinfo

02/16/2021 🔍
02/17/2021 +1 days 🔍
02/17/2021 +0 days 🔍
03/02/2021 +13 days 🔍

Sourcesinfo

Advisory: 49565
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-27237 (🔍)
GCVE (CVE): GCVE-0-2021-27237
GCVE (VulDB): GCVE-100-170019
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 02/17/2021 07:52
Updated: 03/02/2021 11:04
Changes: 02/17/2021 07:52 (47), 03/02/2021 10:59 (2), 03/02/2021 11:04 (18)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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