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.

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)

EPSS: 0.046 (90.8th percentile) — read the EPSS interpretation.

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.

Affected products

Episerver — versions 7
N/a — versions n/a

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, 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.