CVE-2017-12621 is a critical XML External Entity (XXE) vulnerability affecting Apache Commons Jelly before version 1.0.1. It allows an attacker to craft a malicious Jelly XML file that, when parsed, forces the system to connect to an arbitrary URL, potentially leading to information disclosure, denial of service, or remote code execution. With a CVSS score of 9.8, this vulnerability is easily exploitable over the network with low attack complexity and no user interaction required, resulting in complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the high severity warrants immediate patching.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 1.0.1CPE matchmatch criteria | cpe:2.3:a:apache:commons_jelly:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.