CVE-2018-1999002

Exp

A arbitrary file read vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in the Stapler web framework's org/kohsuke/stapler/Stapler.java that allows attackers to send crafted HTTP requests returning the contents of any file on the Jenkins master file system that the Jenkins master has access to.

Published: 2018-07-23 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2018-1999002 is rated High Exploit Risk (80.3/100): CVSS High severity, with high exploitation likelihood (EPSS 93.67%, 100th percentile). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: 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-2018-1999002

EDB-ID Source Kind Published Link
46453 exploit_db edb 2019-02-25 Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-1999002

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 2026-05-19 93.37% 93.67% +0.30%
2 2026-05-10 92.75% 93.37% +0.62%
3 2026-01-18 92.75%

Full EPSS history (38 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-1999002

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-2018-1999002

GitHub Security Advisory for CVE-2018-1999002

GHSA-qf38-f2fr-q4x9 · Severity: high · Ecosystem: maven — Improper Input Validation in Jenkins

OS Trackers for CVE-2018-1999002

vendor priority summary link
redhat high https://access.redhat.com/security/cve/CVE-2018-1999002

Affected software / configurations for CVE-2018-1999002

Vendor Product Version Raw CPE
jenkins jenkins <= 2.121.1 cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:*:*:*
jenkins jenkins >= 2.122, <= 2.132 cpe:2.3:a:jenkins:jenkins:*:*:*:*:*:*:*:*
oracle communications_cloud_native_core_automated_test_suite 1.9.0 cpe:2.3:a:oracle:communications_cloud_native_core_automated_test_suite:1.9.0:*:*:*:*:*:*:*

References for CVE-2018-1999002

URL Tags
https://jenkins.io/security/advisory/2018-07-18/#SECURITY-914 Mitigation Vendor Advisory
https://www.exploit-db.com/exploits/46453/ Exploit Third Party Advisory VDB Entry
https://www.oracle.com/security-alerts/cpuapr2022.html Patch Third Party Advisory
cvelogic Threat Intelligence