What is CVE-2018-7602?

CVE-2018-7602 is a critical-severity vulnerability in Drupal Core, classified under Code Injection. CVSS score: 9.8/10. Published 2018-07-19.

How severe is CVE-2018-7602?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2018-7602 known to be exploited?

Yes. CVE-2018-7602 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-13), indicating it is being actively exploited. 41 public proof-of-concept repositories are indexed.

RCE in Drupal Core

CVE-2018-7602

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.

Vulnerability class: RCE (Remote Code Execution)

Published 2018-07-19 · last modified 2026-10-02.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.992 (99.9th percentile), scored 2026-10-13.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 99.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.992 · newest: 0.992 · change: -0.000

Affected products

Drupal Core — versions unspecified, unspecified, unspecified
Drupal
Debian Linux — versions 7.0, 8.0, 9.0

Weakness classification (CWE)

CWE-94 — Code Injection

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-04-13. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-04.

Required action: Apply updates per vendor instructions.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

www.exploit-db.com/exploits/44557/ (Exploit, VDB Entry, Third Party Advisory, exploit)
www.securitytracker.com/id/1040754 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
lists.debian.org/debian-lts-announce/2018/04/msg00030.html (mailing-list, Mailing List, Third Party Advisory)
www.exploit-db.com/exploits/44542/ (Exploit, VDB Entry, Third Party Advisory, exploit)
www.debian.org/security/2018/dsa-4180 (vendor-advisory, Third Party Advisory)
www.drupal.org/sa-core-2018-004 (Patch, Vendor Advisory)
www.securityfocus.com/bid/103985 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2018-7602?: CVE-2018-7602 is a critical-severity vulnerability in Drupal Core, classified under Code Injection. CVSS score: 9.8/10. Published 2018-07-19.
How severe is CVE-2018-7602?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2018-7602 known to be exploited?: Yes. CVE-2018-7602 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-04-13), indicating it is being actively exploited. 41 public proof-of-concept repositories are indexed.