Security Resilience

CVE-2018-7600

Drupal ≤ 7.57

CISA KEVActive ExploitationEUVD ExploitedPublic PoCRansomware-linked
Published
29 March 2018
Modified
31 October 2025
KEV Added
03 November 2021
Patch / advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.99 100.0th percentile
Risk Priority 97 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2018-7600 is a critical-severity Improper Input Validation (CWE-20) vulnerability in Drupal Drupal. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 0.0% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2018-7600 is a remote code execution vulnerability affecting Drupal versions prior to 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6, and 8.5.x before 8.5.1. The flaw stems from an input validation issue (CWE-20) impacting multiple subsystems when default or common module configurations are in use, enabling unauthenticated attackers to inject and execute arbitrary code on the server.

The vulnerability can be exploited remotely over the network by unauthenticated attackers without user interaction, as reflected in its CVSS 3.1 score of 9.8. Successful exploitation grants full control over the affected Drupal installation, allowing arbitrary code execution that can lead to complete compromise of confidentiality, integrity, and availability.

Advisories and references, including Drupal security announcement SA-CORE-2018-002, direct users to apply the listed version updates to remediate the issue. Public references also note the availability of proof-of-concept code and scanning data indicating more than 100,000 exposed Drupal sites at the time of disclosure.

The issue, sometimes referred to as Drupalgeddon 2, saw rapid public analysis and exploit development following its 2018 publication, consistent with the provided references to vulnerability scanners and exploit repositories.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

Drupal before 7.58, 8.x before 8.3.9, 8.4.x before 8.4.6, and 8.5.x before 8.5.1 allows remote attackers to execute arbitrary code because of an issue affecting multiple subsystems with default or common module configurations.

CWE(s)
KEV Date Added
03 November 2021

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CVEs Like This One

CVE-2018-7602Same product: Debian Debian Linuxboth on KEV
CVE-2020-28949Same product: Debian Debian Linuxboth on KEV
CVE-2019-6340Same product: Drupal Drupalboth on KEV
CVE-2020-36193Same product: Debian Debian Linuxboth on KEV
CVE-2020-13671Same product: Drupal Drupalboth on KEV
CVE-2022-24086Same product class: CMS coreboth on KEV
CVE-2025-54236Same product class: CMS coreboth on KEV
CVE-2025-31673Same product: Drupal Drupal
CVE-2024-12393Same product: Drupal Drupal
CVE-2025-13080Same product: Drupal Drupal

Affected Assets

drupal
drupal
≤ 7.57 · 8.0.0 — 8.3.9 · 8.4.0 — 8.4.6
debian
debian linux
7.0, 8.0, 9.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-20

Security testing and developer training directly verify and enforce proper input validation, reducing exploitability of injection and malformed-data weaknesses.

addresses: CWE-20

Security testing and evaluation at multiple SDLC stages directly detects missing or flawed input validation, with the required remediation process ensuring fixes are applied.

addresses: CWE-20

Directly implements checks on information inputs to reject invalid data before processing.

addresses: CWE-20

Spam protection mechanisms perform filtering and detection on inbound/outbound messages, directly compensating for missing or weak input validation of unsolicited content.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

blocks

A.8.25 mandates security requirements, secure coding guidelines, checkpoints, testing (incl. code scans) and developer training in the SDLC, which reaches a slice of input validation defects but leaves the majority (incomplete enforcement, second-order inputs, parser differentials, post-validation canonicalization) unaddressed as in the SA-3 and A.8.28 anchors.

blocks

Mandating input controls that include integrity checks and input validation ensures that untrusted data is examined before use, blocking the root cause of many injection and malformed-data weaknesses.

blocks

Security-by-design principles explicitly call for data validation and sanitization at every layer, reducing the chance that malformed or malicious input will be processed without scrutiny.

prevents

Requiring language-specific secure coding standards, peer review, SAST and documented mitigation of common programming errors forces validation of all inputs before they are trusted.

finds

Testing against a defined set of requirements and using code review plus vulnerability scanning forces validation of inputs and handling of unanticipated conditions, reducing the chance that malformed data will be accepted.

Hardening callouts derived

DISA STIG baselines are authored against specific weaknesses. Where this CVE cites a broad weakness class, the mapping is not asserted at that abstraction (owner ruling, 2026-09-25: grade only at Base and below), so no rule is shown here rather than a rule shown against the wrong grain.

  • No fine-grained STIG row for CWE-20, a class-level weakness, and none of its children carries one either.

References