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Gratisfaction CVE-2026-97297

| EUVDEUVD-2026-90841 HIGH
Missing Authorization (CWE-862)
2026-10-01 Patchstack GHSA-7v6p-93cw-mfcw
7.6
CVSS 3.1 · Vendor: Patchstack
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization checks on every request
MITRE ATT&CK

1 technique across 1 tactic: Privilege Escalation

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Impact

The vendor-assigned CVSS 3.1 vector (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L, 7.6 HIGH) describes a network-reachable, low-complexity flaw requiring only low privileges (PR:L) - consistent with a Subscriber-level WordPress account, the lowest authenticated tier and typically self-registerable on sites with open registration (common for a loyalty/referral/contest plugin). The headline risk-amplifying signal is the C:H rating, which implies a Subscriber can read high-value data they should not; however, the description is a single boilerplate sentence ('Subscriber Broken Access Control') with no detail on the exact endpoint, data, or action, so the C:H driving this score cannot be independently verified and may be inflated relative to a typical missing-authorization read. There is NO EPSS score, NO CISA KEV listing, and NO public POC in the provided data, so there is no public exploit identified at time of analysis and no evidence of active or automatable exploitation. Net: this is a plausible real issue for exposed WooCommerce stores that allow customer/Subscriber registration, but it is a vendor-CVSS-driven HIGH on a niche plugin rather than a demonstrated priority - the absence of EPSS/KEV/POC and the thin description argue for patch-when-convenient rather than emergency response, pending confirmation of the C:H claim with Patchstack.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 01, 2026

Missing authorization checks in the Gratisfaction WordPress plugin (versions up to and including 4.6.3) allow authenticated Subscriber-level attackers to bypass access controls, potentially leading to high confidentiality impact and limited integrity/availability impact. The flaw is network-reachable with low complexity (CVSS 7.6 HIGH, PR:L) and requires only a low-privileged account, which may be obtainable via open registration on sites using the plugin. No public exploit code or active exploitation has been identified at time of analysis.

RemediationAI

No fixed version is specified in the provided data. Administrators should monitor the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/gratisfaction-all-in-one-loyalty-contests-referral-program-for-woocommerce/vulnerability/wordpress-gratisfaction-plugin-4-6-3-broken-access-control-vulnerability) for update guidance and upgrade the plugin as soon as a patched version is released. Until a patch is available, consider disabling the plugin if not essential, or restrict access to its functionality by requiring higher-level roles (e.g., Editor or Administrator) for actions. Reviewing user registration settings to limit self-registration of Subscriber accounts can reduce the attack surface, though it may impact legitimate user onboarding. Implementing Web Application Firewall (WAF) rules to block suspicious requests to the plugin's endpoints may provide temporary mitigation, but this is not a substitute for patching.

Affected VersionsENISA

Gratisfaction n/a ≤4.6.3

Affected Packages

euvd gratisfaction 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 Gratisfaction plugin is a WordPress extension for WooCommerce that provides loyalty, contests, and referral programs. It likely exposes AJAX endpoints or REST API routes for subscriber actions (e.g., earning points, entering contests, referring friends) that lack proper capability checks, as classified by CWE-862 (Missing Authorization). The CVSS vector (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L) indicates the attacker needs a valid low-privileged account (Subscriber), but once authenticated, can perform operations that should require higher privileges. The CPE cpe:2.3:a:apps_mav:gratisfaction:*:*:*:*:*:*:*:* confirms the affected product is the Gratisfaction plugin, and the 'Authentication Bypass' tag suggests the flaw may allow a Subscriber to act as an administrator or access admin-only functionality.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (Patchstack) PRIMARY 7.6 HIGH
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:L

Primary rating from Vendor (Patchstack) · only source for this CVE.

CVSS VectorVendor: Patchstack

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low

DescriptionCVE.org

Subscriber Broken Access Control in Gratisfaction <= 4.6.3 versions.

Executive ViewAI

Why It Matters

The Gratisfaction WordPress plugin, in all versions through 4.6.3, contains an authorization flaw that allows any low-privileged Subscriber account to bypass access controls and reach data it should not be able to see, creating a high confidentiality exposure on affected sites. Because many organizations operate WordPress with open user registration, an outside party may be able to self-provision the account needed to exploit this, so the risk extends beyond trusted insiders. With no vendor patch available, leadership should treat every internet-facing site running this plugin as an open exposure requiring immediate compensating controls.

Business Impact: High
Compensating Controls

No vendor-released patch identified at time of analysis. Interim mitigations: deactivate or remove the Gratisfaction plugin (versions up to and including 4.6.3), disable public user registration where the plugin must stay online, audit and remove unnecessary Subscriber accounts, restrict access to plugin endpoints, and apply WAF or virtual-patching rules to block unauthorized requests.

Threat Intelligence Overview

EPSS Score
0.3%
Top 80% exploitable
Data Quality
4 sources
Confidence: Medium

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 HIGH
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Partial

Priority Score

38
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +38
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.

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