CVE-2023-5691Network attack vector

Stored XSS via unescaped admin settings

Published Jan 11, 2024 · Updated Jun 3, 2025

Stored XSS in Collectchat Inc. Collect.chat Chatbot 2.3.9 allows remote authenticated users with Administrator access to inject scripts. The plugin's administrative settings handler stores attacker-supplied values without sufficient input sanitization and later renders them without output escaping. The scripts execute when a user opens an affected page; exploitation requires Administrator privileges and either WordPress multisite or disabled unfiltered_html.

CVSS severity4.4
Medium
EPSS probability0.29%
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 Collectchat Inc. Collect.chat Chatbot 2.3.9 allows remote authenticated users with Administrator access to inject scripts. The plugin's administrative settings handler stores attacker-supplied values without sufficient input sanitization and later renders them without output escaping. The scripts execute when a user opens an affected page; exploitation requires Administrator privileges and either WordPress multisite or disabled unfiltered_html.

The record

CVE
CVE-2023-5691
Published
Jan 11, 2024
Updated
Jun 3, 2025
Vendor
Collectchat Inc.
Product
Collect.chat Chatbot
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 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=2.3.9

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Collectchat Inc. · Collect.chat Chatbotversion=2.3.9

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
4.4WordfenceCVSS:3.1/AV:N/AC:H/PR:H/UI:N/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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

Public exploit references

No public exploit references are available in this record.

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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