vBulletin up to 5.6.7/5.6.8/5.6.9 HTTP Request verify_serialized deserialization

CVSS Meta Temp Score
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CTI Interest Score
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8.4$0-$5k0.00

Summaryinfo

A vulnerability was found in vBulletin up to 5.6.7/5.6.8/5.6.9. It has been rated as critical. Affected is the function verify_serialized of the component HTTP Request Handler. This manipulation causes deserialization. This vulnerability is tracked as CVE-2023-25135. The attack is possible to be carried out remotely. No exploit exists. It is recommended to apply a patch to fix this issue.

Detailsinfo

A vulnerability classified as critical was found in vBulletin up to 5.6.7/5.6.8/5.6.9 (Forum Software). Affected by this vulnerability is the function verify_serialized of the component HTTP Request Handler. The manipulation with an unknown input leads to a deserialization vulnerability. The CWE definition for the vulnerability is CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

vBulletin before 5.6.9 PL1 allows an unauthenticated remote attacker to execute arbitrary code via a crafted HTTP request that triggers deserialization. This occurs because verify_serialized checks that a value is serialized by calling unserialize and then checking for errors. The fixed versions are 5.6.7 PL1, 5.6.8 PL1, and 5.6.9 PL1.

The weakness was disclosed 02/03/2023. It is possible to read the advisory at ambionics.io. This vulnerability is known as CVE-2023-25135 since 02/03/2023. Technical details of the vulnerability are known, but there is no available exploit.

Applying the patch 5.6.7 PL1/5.6.8 PL1/5.6.9 PL1 is able to eliminate this problem.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

Name

Version

License

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: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 5.6.7 PL1/5.6.8 PL1/5.6.9 PL1

Timelineinfo

02/03/2023 🔍
02/03/2023 +0 days 🔍
02/03/2023 +0 days 🔍
03/26/2025 +782 days 🔍

Sourcesinfo

Advisory: ambionics.io
Status: Confirmed

CVE: CVE-2023-25135 (🔍)
GCVE (CVE): GCVE-0-2023-25135
GCVE (VulDB): GCVE-100-220087

Entryinfo

Created: 02/03/2023 08:29
Updated: 03/26/2025 17:46
Changes: 02/03/2023 08:29 (40), 03/04/2023 11:11 (11), 03/26/2025 17:46 (16)
Complete: 🔍
Cache ID: 216:A80:103

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