GoodLayers Hotel Plugin up to 3.1.4 on WordPress deserialization

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
8.4$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in GoodLayers Hotel Plugin up to 3.1.4 on WordPress. Affected by this issue is some unknown functionality. The manipulation leads to deserialization. This vulnerability is uniquely identified as CVE-2025-39503. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in GoodLayers Hotel Plugin up to 3.1.4 on WordPress. It has been rated as critical. This issue affects an unknown functionality. The manipulation with an unknown input leads to a deserialization vulnerability. Using CWE to declare the problem leads to CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Deserialization of Untrusted Data vulnerability in GoodLayers Goodlayers Hotel allows Object Injection. This issue affects Goodlayers Hotel: from n/a through 3.1.4.

The weakness was disclosed by Bonds. The advisory is shared at patchstack.com. The identification of this vulnerability is CVE-2025-39503 since 04/16/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 05/23/2025).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.5
VulDB Meta Temp Score: 8.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (Patchstack): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

04/16/2025 🔍
05/23/2025 +37 days 🔍
05/23/2025 +0 days 🔍
05/23/2025 +0 days 🔍

Sourcesinfo

Advisory: patchstack.com
Researcher: Bonds
Status: Not defined

CVE: CVE-2025-39503 (🔍)
GCVE (CVE): GCVE-0-2025-39503
GCVE (VulDB): GCVE-100-310157

Entryinfo

Created: 05/23/2025 15:40
Changes: 05/23/2025 15:40 (63)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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