CVE-2020-20345Public exploitNetwork attack vector

Authenticated cookie theft via reflected XSS

Published Sep 1, 2021 · Updated Jul 9, 2026

Cross-site scripting in WTCMS 1.0 allows remote authenticated users to steal cookies through a crafted search-box payload in the page-management background. The administrator page-management search handler reflects the keyword parameter into generated HTML without output encoding, allowing injected script execution when the crafted request is rendered. An authenticated administrator must be induced to submit or view the request; the demonstrated consequence is cookie disclosure and possible session misuse, with no evidence of service interruption.

CVSS severity5.4
Medium
EPSS probability0.55%
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 WTCMS 1.0 allows remote authenticated users to steal cookies through a crafted search-box payload in the page-management background. The administrator page-management search handler reflects the keyword parameter into generated HTML without output encoding, allowing injected script execution when the crafted request is rendered. An authenticated administrator must be induced to submit or view the request; the demonstrated consequence is cookie disclosure and possible session misuse, with no evidence of service interruption.

The record

CVE
CVE-2020-20345
Published
Sep 1, 2021
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1189
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 1, 2021CVE 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

5.4NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.5NVDAV:N/AC:M/Au:S/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.

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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')
T1189Drive-by Compromise

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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