HOMEVULNERABILITIESCVE-2020-12848
MEDIUM

CVE-2020-12848

CWE-287Published: June 5, 2020· Updated: Jun 17, 2026

5.4
CVSS v3.1

Official Description

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.

NVD Source

Technical Analysis

CVE-2020-12848 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.

From a weakness classification perspective (CWE-287): Authentication bypass vulnerabilities allow attackers to access protected resources without valid credentials.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Affected Vendors & Products

pydio1 product(s)
cells
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/158002/Pydio-Cells-2.0.4-XSS-File-Write-Code-Execution.html
ADVISORYhttps://www.coresecurity.com/advisories
ADVISORYhttps://www.coresecurity.com/core-labs/advisories/pydio-cells-204-multiple-vulnerabilities
ADVISORYhttp://packetstormsecurity.com/files/158002/Pydio-Cells-2.0.4-XSS-File-Write-Code-Execution.html
ADVISORYhttps://www.coresecurity.com/advisories
ADVISORYhttps://www.coresecurity.com/core-labs/advisories/pydio-cells-204-multiple-vulnerabilities

All References (6)

→
http://packetstormsecurity.com/files/158002/Pydio-Cells-2.0.4-XSS-File-Write-Code-Execution.htmlThird Party Advisory
→
https://www.coresecurity.com/advisoriesThird Party Advisory
→
https://www.coresecurity.com/core-labs/advisories/pydio-cells-204-multiple-vulnerabilitiesExploit · Third Party Advisory
→
http://packetstormsecurity.com/files/158002/Pydio-Cells-2.0.4-XSS-File-Write-Code-Execution.htmlThird Party Advisory
→
https://www.coresecurity.com/advisoriesThird Party Advisory
→
https://www.coresecurity.com/core-labs/advisories/pydio-cells-204-multiple-vulnerabilitiesExploit · Third Party Advisory

Quick Facts

CVE IDCVE-2020-12848
CVSS Score5.4 / 10
SeverityMEDIUM
WeaknessCWE-287
CISA KEVNo
Affected1 vendor(s)
PublishedJun 5, 2020

Related CVEs (CWE-287)

CVE-2004-2734
10.0
CVE-2006-6997
10.0
CVE-2002-2279
10.0
CVE-2002-2397
10.0
CVE-2004-1760
10.0
CVE-2007-1062
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2020-12848 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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