CVE-2021-26642
8.8 · HIGHOverview
CVE-2021-26642 is a high-severity vulnerability affecting xpressengine xpressengine. It was published on January 20, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
Technical Description
When uploading an image file to a bulletin board developed with XpressEngine, a vulnerability in which an arbitrary file can be uploaded due to insufficient verification of the file. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.
Remediation
Check the references section for vendor advisories and patches from xpressengine. Update xpressengine to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| xpressengine | xpressengine | >= 0, < 3.0.14 | Affected |
Frequently Asked Questions
What is CVE-2021-26642?
CVE-2021-26642 is a high-severity vulnerability affecting xpressengine xpressengine. It was published on January 20, 2023 and has a CVSS 3.1 base score of 8.8 (HIGH).
How severe is CVE-2021-26642?
This vulnerability has a CVSS 3.1 base score of 8.8, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.
How do I fix or remediate CVE-2021-26642?
Check the references section for vendor advisories and patches from xpressengine. Update xpressengine to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2021-26642?
CyberStrike's AI-powered security agents can automatically detect CVE-2021-26642 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
AI agents map your attack surface to find vulnerabilities like this one.
Automated penetration testing that runs continuously, not just quarterly.
AI-driven PR review catches vulnerable dependencies before they ship.
Browser-based exploitation validates findings with real proof-of-concept.
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