CVE-2016-9487
7.8 · HIGHOverview
CVE-2016-9487 is a high-severity vulnerability affecting w3 epubcheck. It was published on July 13, 2018 and has a CVSS 3.1 base score of 7.8 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
EpubCheck 4.0.1 does not properly restrict resolving external entities when parsing XML in EPUB files during validation. An attacker who supplies a specially crafted EPUB file may be able to exploit this behavior to read arbitrary files, or have the victim execute arbitrary requests on his behalf, abusing the victim's trust relationship with other entities.
Remediation
Check the references section for vendor advisories and patches from w3. Update epubcheck 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 |
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Frequently Asked Questions
What is CVE-2016-9487?
CVE-2016-9487 is a high-severity vulnerability affecting w3 epubcheck. It was published on July 13, 2018 and has a CVSS 3.1 base score of 7.8 (HIGH).
How severe is CVE-2016-9487?
This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2016-9487?
Check the references section for vendor advisories and patches from w3. Update epubcheck 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-2016-9487?
CyberStrike's AI-powered security agents can automatically detect CVE-2016-9487 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.
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