CVE-2023-2981Public exploitNetwork attack vector

Cross-site scripting via undisclosed Chat processing

Published May 30, 2023 · Updated Aug 2, 2024

Cross-site scripting in the Chat component of Pydio Cells 4.2.0 allows remote authenticated users to run script in another user's browser. Published records identify only unspecified Chat processing and do not disclose which field accepts the payload or how output neutralization fails. A low-privileged account must submit crafted Chat content and another user must render it, allowing browser-context data access or modification without affecting service availability.

CVSS severity5.4
Medium
EPSS probability0.68%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site scripting in the Chat component of Pydio Cells 4.2.0 allows remote authenticated users to run script in another user's browser. Published records identify only unspecified Chat processing and do not disclose which field accepts the payload or how output neutralization fails. A low-privileged account must submit crafted Chat content and another user must render it, allowing browser-context data access or modification without affecting service availability.

The record

CVE
CVE-2023-2981
Published
May 30, 2023
Updated
Aug 2, 2024
Vendor
Pydio
Product
Pydio Cells
Classifications
CWE-80
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=4.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Pydio · Pydio Cellsversion=4.2.0

Published CVSS scores

3.5VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
4.0VulDBAV:N/AC:L/Au:S/C:N/I:P/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-80Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS)

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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