ATutor up to 2.2.4 upload.php IllegalExtensions unrestricted upload

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in ATutor up to 2.2.4. The affected element is an unknown function of the file upload.php. Performing a manipulation of the argument IllegalExtensions results in unrestricted upload. This vulnerability was named CVE-2019-11446. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in ATutor up to 2.2.4 (Learning Management Software). It has been classified as critical. This affects an unknown functionality of the file upload.php. The manipulation of the argument IllegalExtensions with an unknown input leads to a unrestricted upload vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in ATutor through 2.2.4. It allows the user to run commands on the server with the teacher user privilege. The Upload Files section in the File Manager field contains an arbitrary file upload vulnerability via upload.php. The $IllegalExtensions value only lists lowercase (and thus .phP is a bypass), and omits .shtml and .phtml.

The bug was discovered 04/12/2019. The weakness was presented 04/22/2019 (Website). The advisory is shared at exploit-db.com. This vulnerability is uniquely identified as CVE-2019-11446 since 04/21/2019. It is possible to initiate the attack remotely. The successful exploitation needs a authentication. Technical details and a public exploit are known. MITRE ATT&CK project uses the attack technique T1608.002 for this issue.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:upload.php it is possible to find vulnerable targets with Google Hacking.

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

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
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: 🔍
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: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/12/2019 🔍
04/21/2019 +9 days 🔍
04/22/2019 +1 days 🔍
04/23/2019 +1 days 🔍
08/09/2025 +2300 days 🔍

Sourcesinfo

Advisory: exploit-db.com
Status: Not defined

CVE: CVE-2019-11446 (🔍)
GCVE (CVE): GCVE-0-2019-11446
GCVE (VulDB): GCVE-100-133953
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 04/23/2019 08:58
Updated: 08/09/2025 21:02
Changes: 04/23/2019 08:58 (55), 06/01/2020 11:40 (2), 09/06/2023 14:02 (3), 08/09/2025 21:02 (23)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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