CVE-2020-11839Network attack vector

Stored script execution via undisclosed input handling

Published Jun 12, 2020 · Updated Aug 4, 2024

Stored cross-site scripting in OpenText ArcSight Logger 6.6.1 through 7.0.1 allows remote authenticated users to run script in another user's browser. OpenText has not published the input field, endpoint, or output context that stores and later renders the unneutralized content. Exploitation requires low-privileged access and a victim to view the stored content, allowing the script to read or alter browser-accessible data.

CVSS severity5.4
Medium
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in OpenText ArcSight Logger 6.6.1 through 7.0.1 allows remote authenticated users to run script in another user's browser. OpenText has not published the input field, endpoint, or output context that stores and later renders the unneutralized content. Exploitation requires low-privileged access and a victim to view the stored content, allowing the script to read or alter browser-accessible data.

The record

CVE
CVE-2020-11839
Published
Jun 12, 2020
Updated
Aug 4, 2024
Vendor
OpenText
Product
ArcSight Logger
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 12, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=All version from 6.6.1 up to 7.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenText · ArcSight Loggerversion=All version from 6.6.1 up to 7.0.1

Published CVSS scores

6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
5.4OpenText CommunityCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
6.1OpenText Security BulletinCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.9OpenText Security BulletinAV:N/AC:M/Au:S/C:P/I:P/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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