XXE in Episerver
CVE-2017-17762
XML external entity (XXE) vulnerability in Episerver 7 patch 4 and earlier allows remote attackers to read arbitrary files via a crafted DTD in an XML request involving util/xmlrpc/Handler.ashx.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.046 (91.5th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.046 · newest: 0.046 · change: 0.000
Affected products
- Episerver — versions 7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- gist.github.com/jonaslejon/5f92779848360a1a1e676af0795bd9aa (Exploit, Third Party Advisory)
- kryptera.se/sarbarhet-i-episerver/ (Exploit, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2017-17762?
- CVE-2017-17762 is a high-severity vulnerability in Episerver, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2018-08-29.
- How severe is CVE-2017-17762?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2017-17762 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.