SB2020100214 - Improper Verification of Cryptographic Signature in WordPress + Microsoft Office 365 plugin for WordPress
Published: October 2, 2020
Security Bulletin ID
SB2020100214
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Verification of Cryptographic Signature (CVE-ID: CVE-2020-26511)
CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the affected plugin does not correctly verify JWT signatures. A remote attacker can forge tokens and bypass authentication and authorisation checks.
Remediation
Install update from vendor's website.