CVE-2023-50357Network attack vector

Authenticated process-data disclosure and modification via XSS

Published Jan 31, 2024 · Updated Aug 23, 2024

Cross-site scripting in AREAL SAS Webserv1 6.1 and earlier allows remote authenticated users to read or modify process data via web parameters. The ASP website insufficiently checks parameter values, allowing malicious data to be injected into content handled under another user's access rights. Exploitation requires low-privileged access and interaction by another non-admin user; the vendor reports disclosure or modification of process information.

CVSS severity5.4
Medium
EPSS probability0.35%
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 AREAL SAS Webserv1 6.1 and earlier allows remote authenticated users to read or modify process data via web parameters. The ASP website insufficiently checks parameter values, allowing malicious data to be injected into content handled under another user's access rights. Exploitation requires low-privileged access and interaction by another non-admin user; the vendor reports disclosure or modification of process information.

The record

CVE
CVE-2023-50357
Published
Jan 31, 2024
Updated
Aug 23, 2024
Vendor
AREAL SAS
Product
Webserv1
Classifications
CWE-79, T1203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 31, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 23, 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=0 <=6.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

AREAL SAS · Webserv1version=0 <=6.1

Published CVSS scores

5.4CERT VDECVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
5.4NVDCVSS: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 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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