Vulnerability Details : CVE-2016-9487
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.
Vulnerability category: XML external entity (XXE) injection
Products affected by CVE-2016-9487
- cpe:2.3:a:w3:epubcheck:4.0.1:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2016-9487
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 30 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2016-9487
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.8
|
MEDIUM | AV:N/AC:M/Au:N/C:P/I:P/A:P |
8.6
|
6.4
|
NIST | |
|
7.8
|
HIGH | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.8
|
5.9
|
NIST |
CWE ids for CVE-2016-9487
-
The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.Assigned by:
- cret@cert.org (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2016-9487
-
https://www.securityfocus.com/bid/94864/
EpubCheck CVE-2016-9487 XML External Entity Injection VulnerabilityThird Party Advisory;VDB Entry
-
https://www.kb.cert.org/vuls/id/779243
VU#779243 - EpubCheck 4.0.1 contains a XML external entity processing vulnerabilityThird Party Advisory;US Government Resource
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