CVE-2020-36634Network attack vector

Cross-site scripting via unescaped n-gram index keys

Published Dec 27, 2022 · Updated Nov 19, 2024

Cross-site scripting in Indeed Engineering util 1.0.33 and earlier allows remote authenticated users to inject script via variable names. ViewExportedVariablesServlet builds n-gram index JSON from exported variable names, and appendTo inserts resulting keys without escaping nonalphanumeric characters. A low-privileged user who can define a variable name and persuade another user to view the indexed servlet page can execute script in that viewer's browser.

CVSS severity5.4
Medium
EPSS probability0.50%
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 Indeed Engineering util 1.0.33 and earlier allows remote authenticated users to inject script via variable names. ViewExportedVariablesServlet builds n-gram index JSON from exported variable names, and appendTo inserts resulting keys without escaping nonalphanumeric characters. A low-privileged user who can define a variable name and persuade another user to view the indexed servlet page can execute script in that viewer's browser.

The record

CVE
CVE-2020-36634
Published
Dec 27, 2022
Updated
Nov 19, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 27, 2022CVE publishedPublication date reported by the CVE source.
  2. Nov 19, 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

5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
2.6VulDBCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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