CVE-2018-8734

Exp

SQL injection vulnerability in the core config manager in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an attacker to execute arbitrary SQL commands via the selInfoKey1 parameter.

Published: 2018-04-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-8734 is rated High Exploit Risk (93.9/100): CVSS Critical severity, with high exploitation likelihood (EPSS 79.02%, 99th percentile). 5 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +6.49% 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-2018-8734

EDB-ID Source Kind Published Link
44969 exploit_db edb 2018-07-02 Exploit-DB ↗
44560 exploit_db edb 2018-04-30 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-8734

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 2026-03-04 72.52% 79.02% +6.49%
2 2026-03-01 79.02% 72.52% -6.49%
3 2026-02-04 — 79.02% —

Full EPSS history (44 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-8734

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.0 CRITICAL
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 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:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 5.9 [email protected]
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P 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:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2018-8734

OS Trackers for CVE-2018-8734

vendor priority summary link
ubuntu medium CVE-2018-8734 medium priority: Ubuntu including 1 source packages (nagios3), 4 status rows across 4 suites (artful, trusty, upstream, xenial): not-affected 2, DNE 1, needs-triage 1. https://ubuntu.com/security/CVE-2018-8734

Affected software / configurations for CVE-2018-8734

Vendor Product Version Raw CPE
nagios nagios_xi >= 5.2.0, < 5.4.13 cpe:2.3:a:nagios:nagios_xi:*:*:*:*:*:*:*:*

References for CVE-2018-8734

URL Tags
https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT Release Notes Vendor Advisory
https://blog.redactedsec.net/exploits/2018/04/26/nagios.html Exploit Technical Description Third Party Advisory
https://gist.github.com/caleBot/f0a93b5a98574393e0139104eacc2d0f Third Party Advisory
https://www.exploit-db.com/exploits/44560/ Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/44969/ Exploit Third Party Advisory VDB Entry
https://www.nagios.com/downloads/nagios-xi/change-log/ Release Notes Vendor Advisory
cvelogic Threat Intelligence