CVE-2021-32962Network attack vector

Arbitrary code execution via cross-site scripting

Published May 24, 2022 · Updated Apr 16, 2025

Cross-site scripting in AGG Software Web Server 4.0.40.1014 and earlier allows remote attackers to execute code via crafted web input. Public advisories do not identify the affected request parameter, rendering path, or missing output-encoding operation in webserver.dll. The server can be exposed over HTTP or HTTPS to a LAN or the Internet, but published assessments disagree on whether a victim must load the crafted content.

CVSS severity6.1
Medium
EPSS probability0.77%
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 AGG Software Web Server 4.0.40.1014 and earlier allows remote attackers to execute code via crafted web input. Public advisories do not identify the affected request parameter, rendering path, or missing output-encoding operation in webserver.dll. The server can be exposed over HTTP or HTTPS to a LAN or the Internet, but published assessments disagree on whether a victim must load the crafted content.

The record

CVE
CVE-2021-32962
Published
May 24, 2022
Updated
Apr 16, 2025
Vendor
AGG Software
Product
Web Server With Live Data plugin for Data Loggers
Classifications
CWE-79
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 24, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 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=All <=v4.0.40.1014

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

AGG Software · Web Server With Live Data plugin for Data Loggersversion=All <=v4.0.40.1014

Published CVSS scores

6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
8.2ICS-CERTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

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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