CVE-2023-36809Public exploitNetwork attack vector

Stored XSS via incomplete input and MIME handling

Published Jul 5, 2023 · Updated Oct 24, 2024

Stored cross-site scripting in Kiwi TCMS before 12.5 allows remote attackers to execute scripts in a victim's browser via uploaded content. The uploads location uses an add_header directive that does not replace MIME type resolution, while tree_view_html() inserts unsanitized test-plan names into HTML. Execution requires a victim to open attacker-controlled content in an affected browser such as Firefox or view a tainted test-plan tree; the script can read or modify data available to that browser session.

CVSS severity8.1
High
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stored cross-site scripting in Kiwi TCMS before 12.5 allows remote attackers to execute scripts in a victim's browser via uploaded content. The uploads location uses an add_header directive that does not replace MIME type resolution, while tree_view_html() inserts unsanitized test-plan names into HTML. Execution requires a victim to open attacker-controlled content in an affected browser such as Firefox or view a tainted test-plan tree; the script can read or modify data available to that browser session.

The record

CVE
CVE-2023-36809
Published
Jul 5, 2023
Updated
Oct 24, 2024
Vendor
Kiwi TCMS
Product
Kiwi TCMS
Classifications
CWE-434, CWE-79, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 24, 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?

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

  1. Affected versionversion=0 <12.5
  2. Affected versionversion=< 12.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Kiwi TCMS · Kiwi TCMSversion=0 <12.5; version=< 12.5

Published CVSS scores

8.1GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
5.4NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
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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