Subrion CMS 4.2.1 /panel/uploads unrestricted upload

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.
5.7$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Subrion CMS 4.2.1. Affected by this vulnerability is an unknown functionality of the file /panel/uploads. The manipulation leads to unrestricted upload. This vulnerability is documented as CVE-2018-19422. The attack can be initiated remotely. Additionally, an exploit exists.

Detailsinfo

A vulnerability was found in Subrion CMS 4.2.1 (Content Management System). It has been rated as critical. This issue affects an unknown code of the file /panel/uploads. The manipulation with an unknown input leads to a unrestricted upload vulnerability. Using CWE to declare the problem leads to CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

/panel/uploads in Subrion CMS 4.2.1 allows remote attackers to execute arbitrary PHP code via a .pht or .phar file, because the .htaccess file omits these.

The bug was discovered 11/14/2018. The weakness was released 11/21/2018 (Website). The advisory is shared at github.com. The identification of this vulnerability is CVE-2018-19422 since 11/21/2018. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is needed for exploitation. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

The exploit is available at packetstormsecurity.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 7 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (49876). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.7
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.2
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Unrestricted upload
CWE: CWE-434 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

11/14/2018 🔍
11/21/2018 +7 days 🔍
11/21/2018 +0 days 🔍
11/21/2018 +0 days 🔍
11/22/2018 +1 days 🔍
08/04/2025 +2447 days 🔍

Sourcesinfo

Advisory: 162591
Status: Not defined

CVE: CVE-2018-19422 (🔍)
GCVE (CVE): GCVE-0-2018-19422
GCVE (VulDB): GCVE-100-127061
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 11/22/2018 08:00
Updated: 08/04/2025 15:33
Changes: 11/22/2018 08:00 (56), 04/14/2020 14:34 (1), 06/11/2023 09:42 (3), 06/19/2024 06:04 (22), 08/04/2025 15:33 (5)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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