CVE-2026-19223

HIGHPre-NVD 7.27.2—
EchelonGraph scoreHIGH confidence

Score 7.2 from GitHub Security Advisory (severity: HIGH) published 2026-08-27. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.2; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 5 sources updated this week
7.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.2Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

The Smush WordPress plugin before 4.3.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network.

CVSS v3
7.2
EG Score
7.2(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity72% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
30%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 28, 2026

Advisory Details (1)

Auto-updated Aug 27, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Smush < 4.3.2 – Admin+ Network-Wide RCE via Hub Connector on Multisite | CVE 2026-19223 | Plugin Vulnerabilities

https://wpscan.com/vulnerability/77187a44-9850-4b7e-a6c2-84de660f46a3/

Vendor Advisories for CVE-2026-19223(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 18× in last 7d / 18× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-29 19:50 UTCGHSA enrichment
  3. 2026-08-29 07:28 UTCEG score recompute
  4. 2026-08-29 07:28 UTCGHSA enrichment
  5. 2026-08-28 21:41 UTCEPSS rescore
  6. 2026-08-28 19:04 UTCGHSA enrichment
  7. 2026-08-28 18:06 UTCGHSA enrichment
  8. 2026-08-28 05:43 UTCEG score recompute
  9. 2026-08-28 05:43 UTCGHSA enrichment
  10. 2026-08-27 17:19 UTCGHSA enrichment
  11. 2026-08-27 16:50 UTCEG score recompute▲ 7.20
  12. 2026-08-27 16:50 UTCGHSA enrichment
  13. 2026-08-27 16:43 UTCMITRE cvelistV5CVSS v3 → 7.2 · severity → HIGH
  14. 2026-08-27 14:25 UTCEPSS rescore
  15. 2026-08-27 06:34 UTCGHSA enrichment
  16. 2026-08-27 06:17 UTCNVD update
  17. 2026-08-27 06:15 UTCEG score recompute
  18. 2026-08-27 06:11 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-19223?
CVE-2026-19223 is a high vulnerability published on August 27, 2026. The Smush WordPress plugin before 4.3.2 does not restrict a network-wide setting to network administrators, allowing an administrator of any single site on a multisite network to execute arbitrary code across the entire network.
When was CVE-2026-19223 disclosed?
CVE-2026-19223 was first published in the National Vulnerability Database on August 27, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19223 actively exploited?
CVE-2026-19223 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 70.2% of all scored CVEs.
What is the CVSS score of CVE-2026-19223?
CVE-2026-19223 has a CVSS v3.1 base score of 7.2 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-19223?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19223, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-19223

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