CVE-2019-20212Public exploitNetwork attack vector

Session hijacking via stored chat-message script injection

Published Jan 13, 2020 · Updated Aug 5, 2024

Stored XSS in the chat widget of CTHthemes CityBook, TownHub, and EasyBook allows remote authenticated users to execute browser script. The chat-reply handler accepts attacker-controlled reply_text content and later renders the stored message as active markup in the recipient's chat view or widget. A valid WordPress account and chat nonce are required; viewing the message executes script in the recipient's browser, enabling session theft or a forced redirect.

CVSS severity6.1
Medium
EPSS probability2.58%
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 widget of CTHthemes CityBook, TownHub, and EasyBook allows remote authenticated users to execute browser script. The chat-reply handler accepts attacker-controlled reply_text content and later renders the stored message as active markup in the recipient's chat view or widget. A valid WordPress account and chat nonce are required; viewing the message executes script in the recipient's browser, enabling session theft or a forced redirect.

The record

CVE
CVE-2019-20212
Published
Jan 13, 2020
Updated
Aug 5, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-79, T1059.007
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 13, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.2WordfenceCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
4.3NIST NVDAV:N/AC:M/Au:N/C:N/I:P/A:N
6.1NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
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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