Security readout for executives and security teams
Plain-English summary
CVE-2018-7600, widely associated with Drupalgeddon 2, lets unauthenticated remote attackers run arbitrary code on vulnerable Drupal sites. For executives, this is a critical internet-facing CMS risk: compromise can mean full site takeover, data exposure, content manipulation, and service disruption if affected versions remain deployed.
Executive priority
Handle as an emergency for any reachable unpatched Drupal site. The combination of unauthenticated remote code execution, critical CVSS 9.8 severity, and KEV status makes this a board-visible web compromise risk rather than routine patch hygiene.
Technical view
The CVE affects Drupal before 7.58, 8.3.9, 8.4.6, and 8.5.1. The issue involves improper input handling across multiple subsystems under default or common module configurations, enabling network-based, low-complexity, unauthenticated remote code execution with high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is highest for public Drupal 7 or Drupal 8 sites below the fixed versions, including sites using default or common module configurations. Internal Drupal instances are also exposed if reachable by untrusted networks or compromised users can route traffic to them.
Exploitation context
The source bundle marks this CVE as CISA KEV, supporting known exploitation. The references also include public exploit listings and third-party analysis. Treat any unpatched internet-facing Drupal instance as urgent until version, patch status, and compromise indicators are verified.
Researcher notes
Evidence supports critical unauthenticated RCE in affected Drupal versions and known exploitation. The bundle does not provide environment-specific indicators or a universal post-compromise checklist, so validation should combine version checks, exposure timing, logs, and Drupal/vendor guidance.
Mitigation direction
- Upgrade Drupal core to 7.58, 8.3.9, 8.4.6, 8.5.1, or later.
- Follow Drupal SA-CORE-2018-002 and applicable distributor or appliance vendor advisories.
- Inventory public and internal Drupal instances, including managed hosting and embedded packages.
- Review vendor FAQ guidance if patch timing, site status, or compromise suspicion is unclear.
- If exposure existed, preserve logs and assess for compromise before simply closing the ticket.
Validation and detection
- Confirm Drupal major and exact core version for each identified instance.
- Verify the Drupal security advisory fix level is installed in production.
- Check whether any public-facing instance was vulnerable after March 28, 2018.
- Review web, application, and system logs for suspicious activity during exposure windows.
- Confirm scanners and asset inventory no longer report CVE-2018-7600 exposure.
Public sources used
Michael Williams reviewed this cited source version on .
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-20: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-7600 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- Yes
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CISA KEV status
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/g0rx/CVE-2018-7600-Drupal-RCECVE reference · x_refsource_MISC
- https://twitter.com/arancaytar/status/979090719003627521CVE reference · x_refsource_MISC
- https://twitter.com/RicterZ/status/979567469726613504CVE reference · x_refsource_MISC
- https://www.drupal.org/sa-core-2018-002CVE reference · x_refsource_CONFIRM
- https://www.synology.com/support/security/Synology_SA_18_17CVE reference · x_refsource_CONFIRM
- https://github.com/a2u/CVE-2018-7600CVE reference · x_refsource_MISC
- 44482CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://research.checkpoint.com/uncovering-drupalgeddon-2/CVE reference · x_refsource_MISC
- https://groups.drupal.org/security/faq-2018-002CVE reference · x_refsource_CONFIRM
- DSA-4156CVE reference · vendor-advisory, x_refsource_DEBIAN
- [debian-lts-announce] 20180328 [SECURITY] [DLA 1325-1] drupal7 security updateCVE reference · mailing-list, x_refsource_MLIST
- 44448CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://badpackets.net/over-100000-drupal-websites-vulnerable-to-drupalgeddon-2-cve-2018-7600/CVE reference · x_refsource_MISC
- https://greysec.net/showthread.php?tid=2912&pid=10561CVE reference · x_refsource_MISC
- https://blog.appsecco.com/remote-code-execution-with-drupal-core-sa-core-2018-002-95e6ecc0c714CVE reference · x_refsource_MISC
- https://www.tenable.com/blog/critical-drupal-core-vulnerability-what-you-need-to-knowCVE reference · x_refsource_MISC
- https://twitter.com/RicterZ/status/984495201354854401CVE reference · x_refsource_MISC
- 44449CVE reference · exploit, x_refsource_EXPLOIT-DB
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-7600CVE reference · government-resource
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Input Validation
Improper Input Validation represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.