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CVE-2017-17091

8.8 · HIGH

wp-admin/user-new.php in WordPress before 4.9.1 sets the newbloguser key to a string that can be directly derived from the user ID, which allows remote attackers to bypass intended access restricti…

Published Dec 2, 2017CWE-330EPSS 7.02%

Overview

CVE-2017-17091 is a high-severity vulnerability. It was published on December 2, 2017 and has a CVSS 3.0 base score of 8.8 (HIGH).

This vulnerability has a CVSS 3.0 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

wp-admin/user-new.php in WordPress before 4.9.1 sets the newbloguser key to a string that can be directly derived from the user ID, which allows remote attackers to bypass intended access restrictions by entering this string.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. 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.

References

Refwww.securityfocus.com/bid/102024Refcodex.wordpress.org/Version_4.9.1GitHubgithub.com/WordPress/WordPress/commit/eaf1cfdc1fe0bdffabd8d879c591b864d833326cReflists.debian.org/debian-lts-announce/2017/12/msg00019.htmlRefwordpress.org/news/2017/11/wordpress-4-9-1-security-and-maintenance-release/Refwpvulndb.com/vulnerabilities/8969Refwww.debian.org/security/2018/dsa-4090Refwww.securityfocus.com/bid/102024Refcodex.wordpress.org/Version_4.9.1GitHubgithub.com/WordPress/WordPress/commit/eaf1cfdc1fe0bdffabd8d879c591b864d833326c

How CyberStrike helps

Frequently asked questions

What is CVE-2017-17091?

CVE-2017-17091 is a high-severity vulnerability. It was published on December 2, 2017 and has a CVSS 3.0 base score of 8.8 (HIGH).

How severe is CVE-2017-17091?

This vulnerability has a CVSS 3.0 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-2017-17091?

Check the references section for vendor advisories, patches, and mitigation guidance. 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-2017-17091?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2017-17091 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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