XXE in Libexpat Project
CVE-2023-52426
libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.
EPSS: 0.004 (29.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Libexpat_project Libexpat
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Patch, Vendor Advisory)
- cve@mitre.org (Technical Description)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org (vendor-advisory)
- cve@mitre.org
- af854a3a-2127-422b-91ae-364da2661108
Frequently asked questions
- What is CVE-2023-52426?
- CVE-2023-52426 is a medium-severity vulnerability in Libexpat Project, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 5.5/10. Published 2024-02-04.
- How severe is CVE-2023-52426?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-52426 known to be exploited?
- 13 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.