CVE-2022-42989Public exploitNetwork attack vector

Account takeover via inbox message script injection

Published Nov 22, 2022 · Updated Jul 9, 2026

Stored XSS in Sankhya ERP before 4.11b81 allows remote authenticated users to steal session cookies through crafted inbox messages. Caixa de Entrada accepts HTML and JavaScript in message bodies and renders an image error handler for the recipient without neutralizing it. A normal ERP account and recipient interaction are required; a stolen administrator cookie grants control of that session.

CVSS severity9.0
Critical
EPSS probability0.85%
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 Sankhya ERP before 4.11b81 allows remote authenticated users to steal session cookies through crafted inbox messages. Caixa de Entrada accepts HTML and JavaScript in message bodies and renders an image error handler for the recipient without neutralizing it. A normal ERP account and recipient interaction are required; a stolen administrator cookie grants control of that session.

The record

CVE
CVE-2022-42989
Published
Nov 22, 2022
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1539
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 22, 2022CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record 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

9.0CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
9.0NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

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 exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1539Steal Web Session Cookie

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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