Threats / Drupal / CVE-2018-7600
CVE-2018-7600
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Drupal Core vulnerability
Drupal Core remote code execution vulnerability allowing complete site compromise through multiple attack vectors. Actively exploited in the wild and leveraged in ransomware campaigns.
Verdict
Today item, not a backlog item.
An unauthenticated attacker can execute arbitrary code on vulnerable Drupal installations, leading to full system compromise. The vulnerability has high real-world exploitation activity and is weaponized in ransomware operations.
CISA KEV Yes · 2021-11-034Ransomware use Flagged4EPSS 0.99993 (verify live)5Exploit Weaponized · public PoC6CVSS 9.8 (CISA)3CISA SSVC Exploitation: active · Automatable: yes · Impact: total3
01
Is it exploitable?
— the evidence, ranked above the scoreExploit available
Fully weaponized — public exploit code is cataloged for this vulnerability.We link the existence of the exploit; we do not host or redistribute payloads.
Reported exploitation
930 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), flagged for known ransomware use.
Probability (EPSS)
EPSS 0.99993 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 9.8 (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) · Affected: Drupal, Drupal Core. Confirm exact fixed builds in the vendor advisory.CVSS — CISA-assigned via the ADP container (CVE.org), version 3.1; the CNA left no metrics, so CISA's own score is used ahead of NVD.
Weakness (CWE)
Mapped to CWE-20 Improper Input Validation.CWE assignment from the public NVD record (may be stale); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: yes · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 1315 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
Public exploit available
Public exploit tooling is catalogued for this CVE (a functional/weaponized public exploit). Catalog entries: Metasploit module, nuclei template. We link the catalog page(s) only — no payload or code is hosted or restated here.Link, never host — the catalog page is the source; basicsecurity.net does not redistribute payloads.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I identify a vulnerable Drupal Core instance exposed on the internet.
Business
The organization's web presence becomes a direct target for opportunistic and organized attack groups.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I craft and deliver an exploit payload that bypasses input validation to execute remote code.
Business
Attackers gain unrestricted command execution within the application and underlying server environment.
3
Lateral reach — past segmentation narrative 3
Attacker
I establish persistent access and move laterally through connected systems and data stores.
Business
The breach expands beyond the web application to internal networks, databases, and sensitive business systems.
4
Data at risk — exfiltration narrative 4
Attacker
I exfiltrate data or deploy ransomware to encrypt critical assets.
Business
The organization faces operational shutdown, data loss, regulatory penalties, and potential ransom demands.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05