CVE-2023-0543Public exploitNetwork attack vector

Stored XSS via unescaped subscriber fields

Published Feb 27, 2023 · Updated Mar 11, 2025

Stored XSS in Kiboko Labs Ltd. Arigato Autoresponder and Newsletter before 2.1.7.2 allows remote authenticated users to inject scripts. Subscriber name and email values are stored without adequate sanitization and rendered unescaped on the edit-subscriber page. Administrator access is required to submit the payload, which executes in a later viewer’s browser under the affected site’s origin.

CVSS severity4.8
Medium
EPSS probability0.46%
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 Kiboko Labs Ltd. Arigato Autoresponder and Newsletter before 2.1.7.2 allows remote authenticated users to inject scripts. Subscriber name and email values are stored without adequate sanitization and rendered unescaped on the edit-subscriber page. Administrator access is required to submit the payload, which executes in a later viewer’s browser under the affected site’s origin.

The record

CVE
CVE-2023-0543
Published
Feb 27, 2023
Updated
Mar 11, 2025
Vendor
Kiboko Labs Ltd.
Product
Arigato Autoresponder and Newsletter
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 27, 2023CVE publishedPublication date reported by the CVE source.
  2. Mar 11, 2025Record 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 <2.1.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Kiboko Labs Ltd. · Arigato Autoresponder and Newsletterversion=0 <2.1.7.2

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007JavaScript/JScript

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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