What is the CVSS score of CVE-2026-103336?

CVE-2026-103336 has a CVSS 3.1 base score of 5.3 (Medium). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N. EPSS exploitation probability: 0.2%.

WP Ultimate CSV Importer CVE-2026-103336

EUVD-2026-90787 MEDIUM

Insertion of Sensitive Information Into Sent Data (CWE-201)

2026-10-01 Patchstack

GHSA-6467-f79m-v7rq

WordPress Information Disclosure Wp Ultimate Csv Importer Wordpress Plugin

5.3

CVSS 3.1 · Vendor: Patchstack

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Identify WordPress site running WP Ultimate Importer ≤9.1
Exploit

Send crafted unauthenticated request to plugin endpoint
Execution

Plugin embeds sensitive data in response
Impact

Harvest disclosed information

Vulnerability Assessment

Weakness	CWE CWE-201 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V14 - Data Protection Outbound data filtering
Exploitation Conditions	Requires only that the WP Ultimate CSV Importer plugin (version through 9.1) be installed and active on a network-reachable WordPress site; per the CVSS vector (AV:N/AC:L/PR:N/UI:N) no authentication, user interaction, or non-default configuration is indicated. The limiting factor is scope of impact rather than access: disclosure is partial (C:L) and read-only, with no integrity or availability effect, and the specific sensitive data embedded in sent output is not enumerated in the advisory. Defenders should confirm whether exploitation depends on a particular plugin endpoint or import feature being exposed, as the description does not name one.
Impact	All signals point to a low-to-moderate, confidentiality-only issue. The vendor-supplied CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N, 5.3 MEDIUM) describes network-reachable, low-complexity, unauthenticated exposure of limited sensitive data with no integrity or availability impact - consistent with CWE-201 (Insertion of Sensitive Information Into Sent Data). No EPSS score, no CISA KEV listing, and no public POC were provided, so there is no evidence of active or imminent exploitation; the only reference is the Patchstack database entry. This is a real but bounded data-exposure flaw rather than a high-urgency priority: the C:L rating indicates partial/limited disclosure (e.g., embedded sensitive data in output), not full database compromise. SSVC-style reasoning: exploitation=none observed, automatable=likely (unauthenticated network endpoint), technical impact=partial. The affected version range ('from n/a through 9.1') is vague - the lower bound and a confirmed fixed version are not stated in the input and should be verified against the Patchstack advisory or vendor changelog before remediation planning.
Exploit ScenarioDerived	An unauthenticated remote attacker sends a request to the WP Ultimate CSV Importer plugin on a target WordPress site and receives a response that embeds sensitive information the plugin should not disclose. Because the vector is AV:N/AC:L/PR:N/UI:N, no credentials, user interaction, or special timing are needed. No public exploit code was identified at time of analysis.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 01, 2026

WP Ultimate CSV Importer plugin for WordPress, through version 9.1, exposes embedded sensitive data to unauthenticated network attackers. The plugin inserts sensitive information into sent data, allowing retrieval of partial confidential information without authentication, user interaction, or special configuration. The impact is confidentiality-only and low-to-moderate, with no public exploit code identified at time of analysis.

RemediationAI

The provided data does not include an exact patched version; administrators should consult the Patchstack advisory and the plugin vendor for an updated release that addresses CVE-2026-103336 and apply it when available. Until a fix is applied, consider disabling the WP Ultimate CSV Importer plugin if it is not actively needed, as this eliminates the attack surface but removes import functionality. If the plugin must remain active, restrict access to its endpoints-particularly those related to import operations-to authenticated administrators using a web application firewall or WordPress access controls, though this may break legitimate unauthenticated use cases. Additionally, monitor logs for requests that retrieve sensitive data from the plugin, and ensure that any sensitive information is not inadvertently exposed in plugin output.

Affected VersionsENISA

WP Ultimate CSV Importer 0 ≤9.1

Affected Packages

euvd wp_ultimate_csv_importer no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

The vulnerability is a CWE-201 insertion of sensitive information into sent data, affecting the Smackcoders Inc. WP Ultimate CSV Importer WordPress plugin (CPE: cpe:2.3:a:smackcoders_inc.:wp_ultimate_csv_importer). This class of flaw occurs when an application includes sensitive data-such as configuration details, API keys, or user information-in output that is transmitted to users or external systems, making it retrievable by an attacker. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N indicates network-based exploitation with no privileges or user interaction required, resulting in a low confidentiality impact. The specific sensitive data elements and the exact endpoint or feature that emits them are not enumerated in the advisory.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (Patchstack) PRIMARY 5.3 MEDIUM

AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

vuln.today AI 5.3 MEDIUM

Unauthenticated network endpoint discloses limited embedded sensitive data (C:L); no integrity or availability impact and no scope change per CWE-201 description.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (Patchstack).

CVSS VectorVendor: Patchstack

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

DescriptionCVE.org

Insertion of Sensitive Information Into Sent Data vulnerability in Smackcoders Inc. WP Ultimate CSV Importer wp-ultimate-csv-importer allows Retrieve Embedded Sensitive Data.This issue affects WP Ultimate CSV Importer: from n/a through 9.1.

Threat Intelligence Overview

EPSS Score

0.2%

Top 91% exploitable

Prevalence

Medium

popular WordPress CSV-import plugin, broad but not universal install base

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment CIRCL

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC No

EPSS 0.2%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Scheduled

Exploitation

None

System Exposure· derived

Open

Automatable

Yes

Human Impact· derived

Medium

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +26

PoC: 0

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.