Cells
CVE-2020-12848
MEDIUM
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Lifecycle Timeline
1DescriptionNVD
In Pydio Cells 2.0.4, once an authenticated user shares a file selecting the create a public link option, a hidden shared user account is created in the backend with a random username. An anonymous user that obtains a valid public link can get the associated hidden account username and password and proceed to login to the web application. Once logged into the web application with the hidden user account, some actions that were not available with the public share link can now be performed.
AnalysisAI
In Pydio Cells 2.0.4, once an authenticated user shares a file selecting the create a public link option, a hidden shared user account is created in the backend with a random username. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Technical ContextAI
This vulnerability is classified as Improper Authentication (CWE-287), which allows attackers to bypass authentication mechanisms to gain unauthorized access. In Pydio Cells 2.0.4, once an authenticated user shares a file selecting the create a public link option, a hidden shared user account is created in the backend with a random username. An anonymous user that obtains a valid public link can get the associated hidden account username and password and proceed to login to the web application. Once logged into the web application with the hidden user account, some actions that were not available with the public share link can now be performed. Affected products include: Pydio Cells.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement multi-factor authentication, enforce strong password policies, use proven authentication frameworks.
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Pydio Cells 2.0.4 allows an authenticated user to write or overwrite existing files in another user’s personal and cells
Pydio Cells 2.0.4 web application offers an administrative console named “Cells Console” that is available to users with
The following vulnerability applies only to the Pydio Cells Enterprise OVF version 2.0.4. Rated high severity (CVSS 7.0)
The update feature for Pydio Cells 2.0.4 allows an administrator user to set a custom update URL and the public RSA key
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Pydio Cells 2.0.4 allows XSS. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentic
Pydio Cells through 4.1.2 allows XSS. Rated medium severity (CVSS 5.4), this vulnerability is remotely exploitable, low
Pydio Cells 2.0.4 allows any user to upload a profile image to the web application, including standard and shared user r
Pydio Cells before 1.5.0 fails to neutralize '../' elements, allowing an attacker with minimum privilege to Upload files
Directory traversal in the Copy, Move, and Delete features in Pydio Cells 2.2.9 allows remote authenticated users to enu
Broken access control for user creation in Pydio Cells 2.2.9 allows remote anonymous users to create standard users via
Same weakness CWE-287 – Improper Authentication
View allSame technique Authentication Bypass
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External POC / Exploit Code
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