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CVE-2023-2978

18
FAUCET Score

CVE-2023-2978 is an authorization bypass vulnerability affecting Abstrium Pydio Cells version 4.2.0, specifically within an unknown function of the Change Subscription Handler component. With a CVSS score of 4.3 (Medium), this vulnerability can be exploited remotely with low privileges, resulting in a low impact on integrity but no impact on confidentiality or availability. While the exploit has been publicly disclosed, there is no evidence of active exploitation, nor are there readily available exploit modules in common frameworks like Metasploit or Nuclei, and it has garnered minimal community discussion or media coverage. Upgrading to Pydio Cells version 4.2.1 remediates this issue.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.0CPE matchmatch criteria
cpe:2.3:a:abstrium:pydio_cells:4.2.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

4.6MEDIUM

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.1
Impact Score
2.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.72%
Probability of exploitation in next 30 days
EPSS Percentile
50.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0072 is in the 61st percentile among its peer group of 21,957 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (1)

gopatch availablevia ghsa
Product: github.com/pydio/cellsFixed in: 4.2.1

Vendor Advisories (1)

goGHSA-mv7x-27pc-8c96medium

Go package pydio/cells vulnerable to authorization bypass

May 30, 2023

References

popalltheshells.medium.com / multiple-cves-affecting-pydio-cells-4-2-0-321e7e4712be
ExploitThird Party Advisory
pydio.com / en/community/releases/pydio-cells/pydio-cells-enterprise-421
Release Notes
vuldb.com
Permissions RequiredThird Party AdvisoryVDB Entry
vuldb.com
Permissions RequiredThird Party AdvisoryVDB Entry