Zella Theme < 2.6.3 - Unauthenticated Arbitrary File Upload (CVE-2026-75873) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-75873

Zella Theme < 2.6.3 - Unauthenticated Arbitrary File Upload

Answer in brief

CVE-2026-75873 records a Unknown severity vulnerability in Zella Theme < 2.6.3 - Unauthenticated Arbitrary File Upload. The current sources do not mark it as known exploited. The current feed maps Unknown/Zella Theme (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 Sep 30, 2026Updated Sep 30, 2026Source checked Sep 30, 2026First seen by HOL Sep 30, 2026Material review Sep 30, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. 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 Unknown/Zella Theme (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unknown/Zella Themegeneric	>=0 <2.6.3	2.6.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unknown/Zella Theme.
Review the reported fix. Update Unknown/Zella Theme to 2.6.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 30, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 30, 2026

Sources and claim methodology

Source referencewpscan.com

Upstream source description

The Zella Theme WordPress theme before 2.6.3 does not perform any capability or nonce check on one of its font upload actions, which is available to unauthenticated users, allowing them to upload arbitrary files, including PHP ones, and achieve remote code execution.

Quoted source text, attributed separately from HOL analysis.