XXE in Eprints
CVE-2021-26703
EPrints 3.4.2 allows remote attackers to read arbitrary files and possibly execute commands via crafted JSON/XML input to a cgi/ajax/phrase URI.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.040 (90.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 90th percentile — 90.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.040 · newest: 0.040 · change: 0.000
Affected products
- Eprints — versions 3.4.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- files.eprints.org/2549/ (Patch, Vendor Advisory)
- files.eprints.org/2548/ (Patch, Vendor Advisory)
- github.com/grymer/CVE/blob/master/eprints_security_review.pdf (Exploit, Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-26703?
- CVE-2021-26703 is a critical-severity vulnerability in Eprints, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 9.8/10. Published 2021-03-01.
- How severe is CVE-2021-26703?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2021-26703 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.