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WP Hotel Booking <= 1.10.3 — Remote Code Execution

CVE-2020-29047Published · Updated

Action summary

Affected: ≤1.10.3Update to 1.10.4 or newer

All remediation steps
Watch plugin
Severity
Critical9.8
CVSS
9.8
CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What does this vector mean?
AV:N Attack vector
Network
AC:L Attack complexity
Low
PR:N Privileges required
None
UI:N User interaction
None
S:U Scope
Unchanged
C:H Confidentiality
High
I:H Integrity
High
A:H Availability
High
Weakness
CWE-502 PHP Object Injection
Required access
No account needed
Exploit prediction (EPSS)
No score
CISA KEV
Not listed
On this page8

Am I affected?

WP Hotel Booking wp-hotel-booking

  1. Affected≤ 1.10.3
  2. Patched in1.10.4

Update to 1.10.4 or newer.

You are affected if you run ≤ 1.10.3. Version 1.10.4 and later are not affected by this issue.

  • Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WP Hotel Booking.
  • No admin access? Run a passive check of your site. It reads public files only.
  • No account is needed to exploit this. Treat any exposed site on an affected version as at risk.

What to do

  1. Update to version 1.10.4, or a newer patched version
  2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
  3. Watch WP Hotel Booking to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Nick Blundell.

The wp-hotel-booking plugin through 1.10.3 for WordPress allows remote attackers to execute arbitrary code because of an unserialize operation on the thimpress_hotel_booking_1 cookie in load in includes/class-wphb-sessions.php. This was finally patched in 1.10.04

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

More in WP Hotel Booking

All 28
More vulnerabilities in WP Hotel Booking
SeverityVulnerabilityCVEPublished
Medium6.5Authenticated (Custom role+) SQL Injection
<2.3.2Update to 2.3.2
CVE-2026-15153
Medium6.4Authenticated (Contributor+) Stored Cross-Site Scripting via 'widget_search' Shortcode Attribute
≤2.3.2Update to 2.3.3
CVE-2026-15464
Medium5.3Unauthenticated Price Manipulation
≤2.3.2Update to 2.3.3
CVE-2026-15149
Medium6.1Reflected Cross-Site Scripting via 'check_in_date' Parameter
≤2.3.2Update to 2.3.3
CVE-2026-15094
Medium5.3Unauthenticated Insufficient Verification of Data Authenticity to Payment Bypass via PayPal IPN Handler
≤2.3.1Update to 2.3.2
CVE-2026-11901

Same weakness (PHP Object Injection)

All PHP Object Injection
Other PHP Object Injection vulnerabilities
SeverityVulnerabilityCVEPublished
High7.2Unauthenticated Stored Cross-Site Scripting via Comment User-Agent Header
EZ SQL Reports Shortcode Widget and DB Backup≤5.25.25Update to 5.26.45
CVE-2026-120688
Critical9.8Unauthenticated Arbitrary File Upload via File Upload via Public Form Submission
Chatterbug Forms – Fast, Flexible WordPress Form Builder≤1.0.2Update to 1.1
CVE-2026-125055
Critical9.8Unauthenticated PHP Object Injection to Remote Code Execution via 'form' Parameter
ELEX WordPress HelpDesk & Customer Ticketing System≤3.3.9Update to 3.4.0
CVE-2026-119077
Medium5.3Unauthenticated Sensitive Information Exposure in 'search' Parameter
Customer Reviews for WooCommerce≤5.127.0Update to 5.128.0
CVE-2026-121518

Timeline

  1. CVE published

    Severity critical, CVSS 9.8

  2. Record last updated

Sources & licenses

Wordfence record
Vulnerability data
Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. Licensed under the CC BY-SA 4.0.
CVE® identifiers
Copyright 1999-2026 The MITRE Corporation. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
CVSS / CWE
National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
VulnCrest content
Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.

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