Is CVE-2023-25135 actively exploited?

CVE-2023-25135 has no public evidence of in-the-wild exploitation as of 2025-03-26.

What is the CVSS score for CVE-2023-25135?

CVE-2023-25135 has a CVSS score of 9.8 (CRITICAL severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

How do I patch CVE-2023-25135?

Patch guidance is available from vbulletin security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-25135.

Fix CVE-2023-25135 - CRITICAL vbulletin vbulletin

Q: Which products are affected by CVE-2023-25135?

3 products: vbulletin vbulletin, vbulletin vbulletin, vbulletin vbulletin.

Description

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.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-502 · Insecure Deserialization CWE-502 · Insecure Deserialization

Metadata

Primary Vendor: VBULLETIN
Published: 2/3/2023
Last Modified: 3/26/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2023-25135

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary