CVE-2023-34637Public exploitNetwork attack vector

Victim-browser script execution via unencoded dashboard titles

Published Sep 5, 2023 · Updated Sep 27, 2024

Stored XSS in the IsarFlow Portal in IsarNet AG IsarFlow 5.23 and earlier allows remote authenticated users to run scripts in a victim's browser. The dashboard-title field is stored without correct output encoding in the Delete Dashboard dialog and User Dashboard view. An attacker needs application access, and execution requires another user to open an affected dialog; an administrator's session can then edit or delete dashboards.

CVSS severity5.4
Medium
EPSS probability0.40%
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 the IsarFlow Portal in IsarNet AG IsarFlow 5.23 and earlier allows remote authenticated users to run scripts in a victim's browser. The dashboard-title field is stored without correct output encoding in the Delete Dashboard dialog and User Dashboard view. An attacker needs application access, and execution requires another user to open an affected dialog; an administrator's session can then edit or delete dashboards.

The record

CVE
CVE-2023-34637
Published
Sep 5, 2023
Updated
Sep 27, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 27, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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