CVE-2017-17762

Exp

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.

Published: 2018-08-29 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2017-17762 is rated High Exploit Risk (72.3/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.25%). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2017-17762

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2017-17762

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-16 1.79% 1.25% -0.54%
2 2026-04-16 7.62% 1.79% -5.84%
3 2026-03-15 — 7.62% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2017-17762

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 3.9 3.6 [email protected]
5.0 2.0 MEDIUM
AV:N/AC:L/Au:N/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 10.0 2.9 [email protected]

Weakness enumeration for CVE-2017-17762

Affected software / configurations for CVE-2017-17762

Vendor Product Version Raw CPE
episerver episerver <= 7 cpe:2.3:a:episerver:episerver:*:*:*:*:*:*:*:*
episerver episerver 7 cpe:2.3:a:episerver:episerver:7:*:*:*:*:*:*:*
episerver episerver 7 cpe:2.3:a:episerver:episerver:7:patch_1:*:*:*:*:*:*
episerver episerver 7 cpe:2.3:a:episerver:episerver:7:patch_2:*:*:*:*:*:*
episerver episerver 7 cpe:2.3:a:episerver:episerver:7:patch_3:*:*:*:*:*:*
episerver episerver 7 cpe:2.3:a:episerver:episerver:7:patch_4:*:*:*:*:*:*

References for CVE-2017-17762

URL Tags
https://gist.github.com/jonaslejon/5f92779848360a1a1e676af0795bd9aa Exploit Third Party Advisory
https://kryptera.se/sarbarhet-i-episerver/ Exploit Mitigation Third Party Advisory
cvelogic Threat Intelligence