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Actively exploitedKnown ransomware use

CVE-2018-7602 Drupal Core Remote Code Execution Vulnerability

A remote code execution vulnerability exists within multiple subsystems of Drupal that can allow attackers to exploit multiple attack vectors on a Drupal site.

From the CISA KEV catalogue version 2026.11.06, with Cybergen analysis. Updated 6 Nov 2026.

Our Assessment

Should You Worry?

Patch nowCybergen assessment
  • CISA confirmed exploitation in the wild and added it to the Known Exploited Vulnerabilities catalogue on 13 Apr 2022.
  • CISA lists it as known to be used in ransomware campaigns.
  • Rated High severity (CVSS 8.1, scored by CISA).
  • It has been in the catalogue for 1,668 days. Systems still unpatched now have almost certainly been scanned for it.
The Vulnerability

What It Is

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.

Affected Versions

ProductVersions
Drupal coreunspecified to before 7.59
unspecified to before 8.5.3
unspecified to before 8.4.8

From the public CVE record, as supplied by the vendor. Always confirm against the vendor advisory.

From Watch to Action

What To Do Now

  1. 1

    Find it

    Search your asset inventory and external attack surface for Drupal Core. Include cloud images, appliances and anything a supplier runs for you.

    Attack Surface Management
  2. 2

    Fix it

    Apply updates per vendor instructions.

    Vulnerability Management
  3. 3

    Hunt for compromise

    If an affected system was reachable before you patched, assume it may have been hit. Check logs, new accounts, web shells and outbound connections from the date of exposure.

    Incident Response
  4. 4

    Prove it is fixed

    Rescan or test the system after patching. Upgrades that fail silently and forgotten secondary instances are common.

    Penetration Testing

Vendor Advisories

Regulation

The Compliance Clock

Cyber EssentialsRated high, so if it affects devices in your Cyber Essentials scope, the update must be installed within 14 days of the vendor releasing it.NIS2If exploitation causes a significant incident, essential and important entities owe their CSIRT an early warning within 24 hours and a notification within 72 hours.DORAFinancial entities must classify ICT incidents and send an initial notification for a major incident within strict deadlines, with exploited flaws a common cause.US federal (BOD 22-01)Federal civilian agencies had until 4 May 2022 to remediate. A sensible benchmark for everyone else.

General guidance, not legal advice. Your obligations depend on your sector, scope and jurisdiction.

Stay Ahead

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CVE-2026-9082Drupal Core SQL Injection VulnerabilityAdded 22 May 2026CVE-2019-6340Drupal Core Remote Code Execution VulnerabilityAdded 25 Mar 2022CVE-2020-13671Drupal core Un-restricted Upload of FileAdded 18 Jan 2022CVE-2018-7600 · RansomwareDrupal Core Remote Code Execution VulnerabilityAdded 3 Nov 2021

All 5 exploited Drupal vulnerabilities

Not Sure If You Are Exposed?

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Evidence

Sources

  1. CISA Known Exploited Vulnerabilities catalogue
  2. NVD: CVE-2018-7602
  3. CVE record: CVE-2018-7602
  4. FIRST EPSS
  5. exploit-db.com/exploits/44557/
  6. securitytracker.com/id/1040754
  7. lists.debian.org/debian-lts-announce/2018/04/msg00030.html
  8. exploit-db.com/exploits/44542/
  9. debian.org/security/2018/dsa-4180
  10. drupal.org/sa-core-2018-004
  11. securityfocus.com/bid/103985