CVE-2019-25737Public exploitNetwork attack vector

Administrator script execution via stored chat input

Published Jun 4, 2026 · Updated Jun 4, 2026

Stored XSS in the chat input path in Screets Live Chat Unlimited 2.8.3 allows remote attackers to run scripts in an administrator's browser. The chat input path accepts payloads containing script tags and event handlers, stores them, and renders them without effective neutralization in the WordPress admin area. No account is required to submit a payload, but an administrator must view the affected conversation; execution permits cookie theft or forced redirects.

CVSS severity5.1
Medium
EPSS probability0.21%
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 the chat input path in Screets Live Chat Unlimited 2.8.3 allows remote attackers to run scripts in an administrator's browser. The chat input path accepts payloads containing script tags and event handlers, stores them, and renders them without effective neutralization in the WordPress admin area. No account is required to submit a payload, but an administrator must view the affected conversation; execution permits cookie theft or forced redirects.

The record

CVE
CVE-2019-25737
Published
Jun 4, 2026
Updated
Jun 4, 2026
Vendor
Screets
Product
Live Chat Unlimited
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 4, 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?

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

  1. Affected versionversion=2.8.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Screets · Live Chat Unlimitedversion=2.8.3

Published CVSS scores

5.1VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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')
T1203Exploitation for Client Execution

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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