The MonsterInsights WordPress plugin before 11.1.0 does not correctly validate the signature on one of its unauthenticated AJAX actions: when the MonsterInsights WordPress plugin before 11.1.0 is not connected to Google Analytics the HMAC signing key is empty, which lets unauthenticated attackers forge a valid signature and overwrite a MonsterInsights WordPress plugin before 11.1.0 configuration value, disrupting the MonsterInsights WordPress plugin before 11.1.0's server-side analytics in Manual GA4 mode.
CVE-2026-11366
Score 3.7 from GitHub Security Advisory (severity: LOW) published 2026-08-04. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 3.7; sources differ by 0.0.
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 3.7
- EG Score
- 3.7(high)
- EG Risk
- 17(Track)EG Risk 17/100SSVC: 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 computedSeverity37% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS PROB
- 0%
- EPSS %ILE
- 9%
- KEV
- Not listed
Published
August 4, 2026
Last Modified
August 4, 2026
References (1)
Vendor Advisories for CVE-2026-11366(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 10× in last 7d / 32× 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.
- 2026-08-19 17:03 UTCEPSS rescore
- 2026-08-19 05:38 UTCEG score recompute
- 2026-08-19 05:37 UTCGHSA enrichment
- 2026-08-18 13:48 UTCEPSS rescore
- 2026-08-16 14:56 UTCEPSS rescore
- 2026-08-16 07:33 UTCEG score recompute
- 2026-08-16 07:33 UTCGHSA enrichment
- 2026-08-16 02:14 UTCEPSS rescore
- 2026-08-15 01:30 UTCEPSS rescore
- 2026-08-13 22:00 UTCEPSS rescore
- 2026-08-13 09:30 UTCEG score recompute
- 2026-08-13 09:30 UTCGHSA enrichment
- 2026-08-12 13:50 UTCEPSS rescore
- 2026-08-11 13:42 UTCEPSS rescore
- 2026-08-10 23:59 UTCEPSS rescore
- 2026-08-10 11:26 UTCEG score recompute
- 2026-08-10 11:26 UTCGHSA enrichment
- 2026-08-09 13:46 UTCEPSS rescore
- 2026-08-08 16:37 UTCEPSS rescore
- 2026-08-07 13:23 UTCEG score recompute
- 2026-08-07 13:23 UTCGHSA enrichment
- 2026-08-06 13:46 UTCEPSS rescore
- 2026-08-05 19:17 UTCEPSS rescore
- 2026-08-04 15:20 UTCEG score recompute
- 2026-08-04 15:20 UTCGHSA enrichment
Show 7 moreShow fewer
- 2026-08-04 15:09 UTCEPSS rescore
- 2026-08-04 14:48 UTCEG score recompute▲ 3.70
- 2026-08-04 14:48 UTCGHSA enrichment
- 2026-08-04 14:47 UTCMITRE cvelistV5CVSS v3 → 3.7 · severity → LOW
- 2026-08-04 07:17 UTCNVD update
- 2026-08-04 06:35 UTCEG score recompute
- 2026-08-04 06:33 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-287
Frequently asked(5)
What is CVE-2026-11366?
When was CVE-2026-11366 disclosed?
Is CVE-2026-11366 actively exploited?
What is the CVSS score of CVE-2026-11366?
How do I remediate CVE-2026-11366?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-11366
Is Your Infrastructure Affected by CVE-2026-11366?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.