CVE-2023-4709Public exploitNetwork attack vector

Cross-site scripting via crafted VIEWSTATE parameter

Published Sep 1, 2023 · Updated May 27, 2025

Cross-site scripting in TOTVS RM 12.1 Portal Login.aspx allows remote attackers to execute script via a crafted VIEWSTATE value. Login.aspx processes the value without effective request validation, causing attacker-controlled markup to execute in a user's browser. Exploitation requires user interaction and a non-default configuration with VIEWSTATE enabled; standard production configurations disable it.

CVSS severity2.3
Low
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Cross-site scripting in TOTVS RM 12.1 Portal Login.aspx allows remote attackers to execute script via a crafted VIEWSTATE value. Login.aspx processes the value without effective request validation, causing attacker-controlled markup to execute in a user's browser. Exploitation requires user interaction and a non-default configuration with VIEWSTATE enabled; standard production configurations disable it.

The record

CVE
CVE-2023-4709
Published
Sep 1, 2023
Updated
May 27, 2025
Vendor
TOTVS
Product
TOTVS RM
Classifications
CWE-94, CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 1, 2023CVE publishedPublication date reported by the CVE source.
  2. May 27, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=12.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTVS · TOTVS RMversion=12.1

Published CVSS scores

3.1VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
2.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
6.1NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
2.6VulDBAV:N/AC:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Code Injection
CWE-79Cross 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

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo