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CVE-2020-12851

25
FAUCET Score

CVE-2020-12851 describes a critical vulnerability in Pydio Cells 2.0.4, allowing an authenticated user to overwrite or create arbitrary files within other users' personal and cells folders. This is achieved by uploading a specially crafted ZIP file and exploiting the application's file extraction functionality. The vulnerability carries a CVSS score of 8.1 (High), indicating a low-complexity network attack that can lead to high impact on confidentiality and integrity. While no public exploits, Metasploit modules, or Nuclei templates are currently available, and there is minimal community discussion or media coverage, the potential for unauthorized file manipulation remains significant.

Impacted Technologies

VendorProductVersion(s)CPE
2.0.4CPE matchmatch criteria
cpe:2.3:a:pydio:cells:2.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.1HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
5.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.45%
Probability of exploitation in next 30 days
EPSS Percentile
70.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0145 is in the 68th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/158002/Pydio-Cells-2.0.4-XSS-File-Write-Code-Execution.html
Third Party Advisory
coresecurity.com / advisories
Third Party Advisory
coresecurity.com / core-labs/advisories/pydio-cells-204-multiple-vulnerabilities
ExploitThird Party Advisory