CVE-2018-7602 | Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-004

Exp

A remote code execution vulnerability exists within multiple subsystems of Drupal 7.x and 8.x. This potentially allows attackers to exploit multiple attack vectors on a Drupal site, which could result in the site being compromised. This vulnerability is related to Drupal core - Highly critical - Remote Code Execution - SA-CORE-2018-002. Both SA-CORE-2018-002 and this vulnerability are being exploited in the wild.

Published: 2018-07-19 Last update: 2025-11-07 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-7602 is rated Critical Active Threat (99.3/100): CVSS Critical severity, with high exploitation likelihood (EPSS 94.38%, 100th percentile). CISA KEV confirms active exploitation (added 2022-04-13) affecting Drupal / Core. a weakness (CWE-94) Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

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

CISA KEV Record for CVE-2018-7602

Name: Drupal Core Remote Code Execution Vulnerability · CISA KEV detail

Exploit added: 2022-04-13

Action due: 2022-05-04

Required action: Apply updates per vendor instructions.

Public exploit references (Exploit-DB) for CVE-2018-7602

EDB-ID Source Kind Published Link
44557 exploit_db edb 2018-04-30 Exploit-DB ↗
44542 exploit_db edb 2018-04-25 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-7602

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 2026-01-24 94.32% 94.38% +0.07%
2 2025-11-21 94.13% 94.32% +0.18%
3 2025-11-18 — 94.13% —

Full EPSS history (24 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-7602

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.8 3.1 CRITICAL
CVSS:3.1/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]
9.8 3.1 CRITICAL
CVSS:3.1/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 134c704f-9b21-4f2e-91b3-4a467353bcc0
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-2018-7602

GitHub Security Advisory for CVE-2018-7602

GHSA-297x-j9pm-xjgg · Severity: critical · Ecosystem: composer — Drupal Core Remote Code Execution Vulnerability

OS Trackers for CVE-2018-7602

vendor priority summary link
alpine — CVE-2018-7602: 1 source package rows (drupal7); 5 state rows across 5 repos (3.17-community, 3.18-community, 3.19-community, 3.20-community, edge-community); fixed 5, open 0. https://security.alpinelinux.org/vuln/CVE-2018-7602
ubuntu high CVE-2018-7602 high priority: Ubuntu including 1 source packages (drupal7), 13 status rows across 13 suites (artful, bionic, cosmic, disco, eoan, focal, groovy, hirsute, impish, jammy, trusty, upstream, xenial): DNE 9, released 3, ignored 1. https://ubuntu.com/security/CVE-2018-7602

Affected software / configurations for CVE-2018-7602

Vendor Product Version Raw CPE
drupal drupal >= 7.0, < 7.59 cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
drupal drupal >= 8.4.0, < 8.4.8 cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
drupal drupal >= 8.5.0, < 8.5.3 cpe:2.3:a:drupal:drupal:*:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
debian debian_linux 9.0 cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*

References for CVE-2018-7602

URL Tags
http://www.securityfocus.com/bid/103985 Broken Link Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1040754 Broken Link Third Party Advisory VDB Entry
https://lists.debian.org/debian-lts-announce/2018/04/msg00030.html Mailing List Third Party Advisory
https://www.debian.org/security/2018/dsa-4180 Third Party Advisory
https://www.drupal.org/sa-core-2018-004 Patch Vendor Advisory
https://www.exploit-db.com/exploits/44542/ Exploit Third Party Advisory VDB Entry
https://www.exploit-db.com/exploits/44557/ Exploit Third Party Advisory VDB Entry
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-7602 US Government Resource
cvelogic Threat Intelligence