CVE-2020-13818

In Zoho ManageEngine OpManager before 125144, when <cachestart> is used, directory traversal validation can be bypassed.

Published: 2020-06-04 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-13818 is rated High Risk (65.7/100): CVSS High severity, with high exploitation likelihood (EPSS 76.57%, 99th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +1.13% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2020-13818

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 2025-03-30 75.45% 76.57% +1.13%
2 2025-03-29 76.57% 75.45% -1.13%
3 2025-03-17 — 76.57% —

Full EPSS history (17 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-13818

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 3.1 HIGH
CVSS:3.1/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-2020-13818

Affected software / configurations for CVE-2020-13818

Vendor Product Version Raw CPE
zohocorp manageengine_opmanager < 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:*:*:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:-:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125000:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125002:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125100:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125101:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125102:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125108:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125110:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125111:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125112:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125113:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125114:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125116:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125117:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125118:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125120:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125121:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125123:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125124:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125125:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125136:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125137:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125139:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125140:*:*:*:*:*:*
zohocorp manageengine_opmanager 12.5 cpe:2.3:a:zohocorp:manageengine_opmanager:12.5:build125143:*:*:*:*:*:*

References for CVE-2020-13818

cvelogic Threat Intelligence