Improper input validation in Xmldom
CVE-2022-39353
xmldom is a pure JavaScript W3C standard-based (XML DOM Level 2 Core) `DOMParser` and `XMLSerializer` module. xmldom parses XML that is not well-formed because it contains multiple top level elements, and adds all root nodes to the `childNodes` collection of the `Document`, without reporting any error or throwing. This breaks the assumption that there is only a single root node in the tree, which led to issuance of CVE-2022-39299 as it is a potential issue for dependents. Update to @xmldom/xmldom@~0.7.7, @xmldom/xmldom@~0.8.4 (dist-tag latest) or @xmldom/xmldom@>=0.9.0-beta.4 (dist-tag next). As a workaround, please one of the following approaches depending on your use case: instead of searching for elements in the whole DOM, only search in the `documentElement`or reject a document with a document that has more then 1 `childNode`.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H.
EPSS exploit prediction
EPSS: 0.013 (69.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000
Affected products
- Xmldom — versions <= 0.6.0, < 0.7.7, >= 0.8.0, < 0.8.4
- Xmldom Project — versions 0.9.0
- Debian Linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/xmldom/xmldom/security/advisories/GHSA-crh6-fp67-6883 (Third Party Advisory)
- github.com/jindw/xmldom/issues/150 (Exploit, Third Party Advisory, Issue Tracking)
- lists.debian.org/debian-lts-announce/2023/01/msg00000.html (mailing-list, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2022-39353?
- CVE-2022-39353 is a critical-severity vulnerability in Xmldom, classified under Improper Input Validation. CVSS score: 9.4/10. Published 2022-11-02.
- How severe is CVE-2022-39353?
- Critical severity. CVSS v3 base score is 9.4 out of 10.
- Is CVE-2022-39353 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.