Exploitation observed; activity peaked at 3 mentions and remains active
Recommended action window: Immediate (within 24h)
NVD description
The official MonsterInsights Pro update distribution bucket (`monster-insights.s3.amazonaws.com`) was compromised. Both the current release (10.2.2) and the version MonsterInsights rolled back to (10.2.0) contain a malicious file, `class-system-check.php`. Three distinct variants were observed on 2026-06-11, all sharing the same AES-256-GCM key, confirming a single threat actor. The attacker retains write access to the S3 bucket and has been actively iterating on the payload throughout the day.
Priority
MEDIUM
Exploitation
ACTIVE
PoC
YES
Patch
NONE
Momentum
STABLE
| Date | Total | Labels |
|---|
| 2026-08-07 | 3 | Active Exploitation1Disclosure1General1 |
| 2026-08-10 | 1 | Disclosure1 |
🛡️ #ExploitGrid Daily #Threat Digest Top Vulnerabilities (CVEs) of the day CVE-2026-11976 CVE-2026-14812 CVE-2026-5430 CVE-2026-65553 CVE-2026-66665 ..🧵👇
Post summary
The content merely lists CVID identifiers without any further context or actionable information.
[CVE] CVE-2026-11976 [HIGH PRIORITY] #MonsterInsights Pro 10.2.0/10.2.2 - Backdoored via AWS S3 bucket compromise 🔗 https://exploitgrid.net/cve/CVE-2026-11976
Post summary
The announcement reveals a new CVE involving a MonsterInsights Pro backdoor introduced through an AWS S3 bucket, with a link likely providing PoC details, but no exploitation evidence or patch information is given.
🪣 MonsterInsights Pro backdoored via compromised AWS S3 bucket. Versions 10.2.0 & 10.2.2 both poisoned — the rollback wasn't safe either. CVE-2026-11976, CVSS 10. If it auto-updated, assume compromise. #cybersecurity #ciso #wordpress #msp #mssp https://secalerts.co/vulnerability/CVE-2026-11976?utm_campaign=x https://t.co/JMzs3rSCcW
Post summary
The tweet announces that MonsterInsights Pro versions 10.2.0 and 10.2.2 are backdoored via a compromised AWS S3 bucket, introduces CVE-2026-11976 with a CVSS score of 10, and cautions that auto‑updates may expose systems to compromise.
🚨Critical - MonsterInsights Pro Supply-Chain Backdoor via Compromised Update S3 Bucket (CVE-2026-11976) MonsterInsights Pro update artifacts from the official S3 distribution bucket were tampered to include a malicious class-system-check.php; upgrading or rolling back to 10.2.2/10.2.0 pulls the backdoored file. Multiple payload variants (same AES-256-GCM key) observed 2026-06-11; attacker reportedly retained bucket write access. 👉Affected: MonsterInsights Pro 10.2.0 and 10.2.2
Post summary
The post details how MonsterInsights Pro’s update distribution bucket was compromised to deploy a backdoor, noting multiple payload variants and ongoing bucket access, with no patch or exploit code disclosed.