Vulnerability in Ruby-lang Rexml
CVE-2021-28965
The REXML gem before 3.2.5 in Ruby before 2.6.7, 2.7.x before 2.7.3, and 3.x before 3.0.1 does not properly address XML round-trip issues. An incorrect document can be produced after parsing and serializing.
EPSS: 0.051 (91.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.
Affected products
- Ruby-lang Rexml
- Ruby-lang Ruby
- Fedoraproject Fedora — versions 34
- N/a — versions n/a
Public proof-of-concept exploits
References
- cve@mitre.org (x_refsource_MISC, Vendor Advisory)
- cve@mitre.org (x_refsource_FEDORA, vendor-advisory)
- cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-28965?
- CVE-2021-28965 is a high-severity vulnerability in Ruby-lang Rexml. CVSS score: 7.5/10. Published 2021-04-21.
- How severe is CVE-2021-28965?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-28965 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.