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  4. CVE 2026 66627 wordpress gp premium plugin 255 arbitrary file
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Back to active CVEs
Critical · CVSS 9.9CVE-2026-66627

WordPress GP Premium plugin <= 2.5.5 - Arbitrary File Upload vulnerability

Answer in brief

CVE-2026-66627 records a Critical severity (CVSS 9.9) vulnerability in WordPress GP Premium plugin <= 2.5.5 - Arbitrary File Upload vulnerability. The current sources do not mark it as known exploited. The current feed maps EDGE22 Studios Ltd./GP Premium (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 18, 2026Updated Sep 8, 2026Source checked Oct 2, 2026First seen by HOL Aug 18, 2026Material review Sep 8, 2026
Upstream Advisory

Key facts

Risk
Critical · CVSS 9.9
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Not reported

Why this deserves its current priority

CVSS is 9.9. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps EDGE22 Studios Ltd./GP Premium (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
EDGE22 Studios Ltd./GP Premiumgenericn/aNot reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for EDGE22 Studios Ltd./GP Premium.
  2. 2Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

  1. Published upstream

    Aug 18, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Sep 8, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Aug 18, 2026

Sources and claim methodology

  • Source referencepatchstack.com
Upstream source description

Unrestricted Upload of File with Dangerous Type vulnerability in EDGE22 Studios Ltd. GP Premium allows Remote Code Inclusion. This issue affects GP Premium: from n/a through 2.5.5.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • H3C CVM Unauthenticated File Upload via fileUpload/upload TokenAlso CWE-434
  • CodeArt Google MP3 Audio Player 1.0.11 Arbitrary File Read via direct_download.phpSame generic ecosystem
  • Weaver e-Bridge Unauthenticated Arbitrary File Read via saveYZJFileSame generic ecosystem
  • LimeSurvey Community Edition 7.4.0 - Stored XSS through the Date/Time date_min question attributeSame generic ecosystem
  • Apache Traffic Server: SNI to Host header matching policy is not properly enforcedSame generic ecosystem
  • @orpc/json-schema: Prototype injection in smart coercionSame generic ecosystem

Record context

Vulnerability class
Arbitrary File Read
EPSS
Not reported
CWE IDs
CWE-434
Source
CVE List V5
Source checked
Oct 2, 2026
References
1 linked source
Open source record