CVE-2024-34555 | WordPress Z-Downloads plugin <= 1.11.3 - Auth. Arbitrary File Upload vulnerability

Unrestricted Upload of File with Dangerous Type vulnerability in URBAN BASE Z-Downloads.This issue affects Z-Downloads: from n/a through 1.11.3.

Published: 2024-05-14 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2024-34555 is rated Moderate Risk (57.6/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.22%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2024-34555

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 8.31% 1.22% -7.09%
2 2026-05-20 8.52% 8.31% -0.21%
3 2026-05-07 — 8.52% —

Full EPSS history (16 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-34555

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
10.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 6.0 [email protected]

Weakness enumeration for CVE-2024-34555

GitHub Security Advisory for CVE-2024-34555

GHSA-8xmw-rw82-vwq9 · Severity: critical — Unrestricted Upload of File with Dangerous Type vulnerability in URBAN BASE Z-Downloads.This...

Affected software / configurations for CVE-2024-34555

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2024-34555

cvelogic Threat Intelligence