CVE-2022-4898Network attack vector

Stored XSS via customizable support link

Published Jan 31, 2023 · Updated Mar 27, 2025

Stored XSS in affected Octopus Server releases allows remote authenticated users to execute script through the help sidebar support link. The support-link customization path stores attacker-supplied link content that the sidebar later renders without reliably neutralizing script payloads. Exploitation requires authenticated customization access and a user to open the affected sidebar, exposing data and actions available to that browser session.

CVSS severity5.4
Medium
EPSS probability0.39%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored XSS in affected Octopus Server releases allows remote authenticated users to execute script through the help sidebar support link. The support-link customization path stores attacker-supplied link content that the sidebar later renders without reliably neutralizing script payloads. Exploitation requires authenticated customization access and a user to open the affected sidebar, exposing data and actions available to that browser session.

The record

CVE
CVE-2022-4898
Published
Jan 31, 2023
Updated
Mar 27, 2025
Vendor
Octopus Deploy
Product
Octopus Server
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 31, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 27, 2025Record 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=2019.7.0 <unspecified
  2. Affected versionversion=2022.3.348 <unspecified
  3. Affected versionversion=2022.4.791 <unspecified
  4. Affected versionversion=unspecified <2022.2.8552
  5. Affected versionversion=unspecified <2022.3.10750
  6. Affected versionversion=unspecified <2022.4.8319

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Octopus Deploy · Octopus Serverversion=2019.7.0 <unspecified; version=2022.3.348 <unspecified; version=2022.4.791 <unspecified; version=unspecified <2022.2.8552; version=unspecified <2022.3.10750; version=unspecified <2022.4.8319

Published CVSS scores

5.4CISA ADPCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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