CVE-2018-15705

Exp

WADashboard API in Advantech WebAccess 8.3.1 and 8.3.2 allows remote authenticated attackers to write or overwrite any file on the filesystem due to a directory traversal vulnerability in the writeFile API. An attacker can use this vulnerability to remotely execute arbitrary code.

Published: 2018-10-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-15705 is rated High Exploit Risk (79.5/100): CVSS Medium severity, with high exploitation likelihood (EPSS 12.24%, 96th percentile). 3 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +5.59% over the last day, indicating growing attacker interest. 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-2018-15705

EDB-ID Source Kind Published Link
45774 exploit_db edb 2018-11-05 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-15705

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 2026-06-15 6.65% 12.24% +5.59%
2 2025-11-21 7.83% 6.65% -1.19%
3 2025-11-18 — 7.83% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-15705

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.0 MEDIUM
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/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:L)
A normal user session is enough; they don’t have to be admin.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:N)
Service keeps running; no real outage angle.
 2.8 3.6 [email protected]
8.5 2.0 HIGH
AV:N/AC:L/Au:S/C:N/I:C/A:C 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:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 9.2 [email protected]

Weakness enumeration for CVE-2018-15705

Affected software / configurations for CVE-2018-15705

Vendor Product Version Raw CPE
advantech webaccess 8.3.1 cpe:2.3:a:advantech:webaccess:8.3.1:*:*:*:*:*:*:*
advantech webaccess 8.3.2 cpe:2.3:a:advantech:webaccess:8.3.2:*:*:*:*:*:*:*

References for CVE-2018-15705

URL Tags
https://www.exploit-db.com/exploits/45774/ Exploit Third Party Advisory VDB Entry
https://www.tenable.com/security/research/tra-2018-35 Exploit Third Party Advisory
cvelogic Threat Intelligence