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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (4.65%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 4.65% probability · 92th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-611
- Affected
- episerver/episerver
- Source
- cve@mitre.org
EPSS moved from 2.5% on 21 September 2026 to 4.6% on 27 October 2026.
References
- https://gist.github.com/jonaslejon/5f92779848360a1a1e676af0795bd9aaExploit, Third Party Advisory
- https://kryptera.se/sarbarhet-i-episerver/Exploit, Mitigation, Third Party Advisory
- https://gist.github.com/jonaslejon/5f92779848360a1a1e676af0795bd9aaExploit, Third Party Advisory
- https://kryptera.se/sarbarhet-i-episerver/Exploit, Mitigation, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.