CVE-2024-1983Public exploitNetwork attack vector

Unauthenticated stored script execution via chat names

Published Mar 20, 2024 · Updated Aug 1, 2024

Stored XSS in Simple Ajax Chat before 20240223 allows remote attackers to execute scripts in other users' browsers through a malicious chat name. The chat submission endpoint accepts the n field as a crafted HTML attribute and stores it without sufficient sanitization or output escaping. No account is required, but another user must load the affected chat page; the script then runs in that user's WordPress origin.

CVSS severity7.1
High
EPSS probability0.45%
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 Simple Ajax Chat before 20240223 allows remote attackers to execute scripts in other users' browsers through a malicious chat name. The chat submission endpoint accepts the n field as a crafted HTML attribute and stores it without sufficient sanitization or output escaping. No account is required, but another user must load the affected chat page; the script then runs in that user's WordPress origin.

The record

CVE
CVE-2024-1983
Published
Mar 20, 2024
Updated
Aug 1, 2024
Vendor
Plugin Planet
Product
Simple Ajax Chat
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 20, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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 <20240223

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Plugin Planet · Simple Ajax Chatversion=0 <20240223

Published CVSS scores

7.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1059.007Command and Scripting Interpreter: JavaScript

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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