CVE-2023-49821Network attack vector

Unauthorized actions via missing CSRF validation

Published Dec 18, 2023 · Updated Apr 28, 2026

Cross-site request forgery in LiveChat for WordPress 4.5.15 and earlier allows remote attackers to trigger unauthorized actions. The affected request handler accepts a cross-site request under the victim's session without sufficient request-origin validation, but its name is undisclosed. Exploitation requires a privileged WordPress user to open a malicious link, visit a crafted page, or submit a forged form; published sources do not identify the resulting action.

CVSS severity5.4
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Cross-site request forgery in LiveChat for WordPress 4.5.15 and earlier allows remote attackers to trigger unauthorized actions. The affected request handler accepts a cross-site request under the victim's session without sufficient request-origin validation, but its name is undisclosed. Exploitation requires a privileged WordPress user to open a malicious link, visit a crafted page, or submit a forged form; published sources do not identify the resulting action.

The record

CVE
CVE-2023-49821
Published
Dec 18, 2023
Updated
Apr 28, 2026
Vendor
LiveChat
Product
LiveChat for WordPress
Classifications
CWE-352, CAPEC-62
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 18, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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=n/a <=4.5.15 changes=[{"at":"4.5.16","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LiveChat · LiveChat for WordPressversion=n/a <=4.5.15 changes=[{"at":"4.5.16","status":"unaffected"}]

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
5.4PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-352Cross-Site Request Forgery (CSRF)
CAPEC-62Cross Site Request Forgery

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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