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GiveWP EUVDEUVD-2026-114310

| CVE-2026-116853 MEDIUM
Missing Authorization (CWE-862)
2026-10-30 Patchstack GHSA-5xg3-xvhc-jc3h
6.5
CVSS 3.1 · Vendor: Patchstack
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Attack ChainAIDerived

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

  1. Access
    Identify site running GiveWP <= 4.19.0.1
  2. Exploit
    Send request to unprotected plugin endpoint
  3. Execution
    Bypass missing authorization check
  4. Impact
    Read or modify restricted data

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.

Exploitation Conditions

Affects GiveWP WordPress donation plugin versions <= 4.19.0.1. Per the CVSS vector (AV:N/AC:L/PR:N/UI:N) this is remote and unauthenticated against a default installation with no user interaction, so the primary precondition is simply that a reachable site runs a vulnerable GiveWP version. The specific endpoint, parameter, or plugin feature whose authorization check is missing is NOT described in the available sources, so the exact trigger cannot be stated with confidence. Limiting factors on real-world impact: the flaw yields only low confidentiality and low integrity impact (C:L/I:L, no availability effect), so an attacker gains access to or modification of a bounded subset of plugin data rather than full site takeover.

Impact

This is a moderate-priority issue rather than a top-tier emergency. The CVSS 6.5 (medium) vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N is highly favorable to attackers on the access side - fully remote (AV:N), low complexity (AC:L), no privileges (PR:N) and no user interaction (UI:N) - meaning any unauthenticated remote attacker can reach the flaw against a default install. What holds the score down is impact: only low confidentiality and low integrity (C:L/I:L) with no availability effect, consistent with a CWE-862 missing-authorization flaw exposing or allowing modification of a bounded set of plugin data rather than full compromise. The vuln.today decision label is 'this_month', not 'act_now' or 'emergency', which aligns with the medium severity. Key corroborating signals are ABSENT from the input: no EPSS exploitation-probability score is provided, the CVE is NOT listed in CISA KEV, and no SSVC breakdown is supplied - so exploitation likelihood cannot be quantified from the data given. The only reference is the Patchstack advisory database entry, which is a vendor/coordinator advisory, not working exploit code. Net: a genuinely remote-unauthenticated but limited-impact access-control bug on a popular WordPress plugin - worth patching in the normal monthly cycle, not a drop-everything event.

Exploit ScenarioDerived

A remote, unauthenticated attacker sends a crafted request directly to a GiveWP plugin endpoint on a vulnerable WordPress site (<= 4.19.0.1) that fails to enforce an authorization check, allowing them to read or alter data they should not have access to. No credentials, user interaction, or special timing are required. No public exploit code is identified in the provided data; the single reference is the Patchstack advisory, not a verified working exploit.

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 30, 2026

Unauthenticated broken access control in the GiveWP WordPress donation plugin through version 4.19.0.1 lets remote attackers reach plugin operations that should require authorization, yielding limited confidentiality and integrity impact with no availability effect (CVSS 6.5). The assessed vector is AV:N/AC:L/PR:N/UI:N, so no credentials and no user interaction are needed, although the specific endpoint or parameter that lacks its capability check is not disclosed in the available sources. No CISA KEV entry and no public exploit code were identified at time of analysis, and the issue is scoped in the this_month (routine monthly patching) priority band rather than as an emergency.

RemediationAI

Update the GiveWP plugin to a release later than 4.19.0.1; the supplied data does not state an exact fixed version, so confirm the current patched release against the Patchstack advisory (https://patchstack.com/database/wordpress/plugin/give/vulnerability/wordpress-givewp-plugin-4-19-0-1-broken-access-control-vulnerability?_s_id=cve) before upgrading, since no vendor-released patch version is identified at time of analysis. If the site cannot be updated immediately, deactivating or removing GiveWP closes the exposure entirely at the cost of taking donation forms and fundraising shortcodes offline; fronting the site with WAF or reverse-proxy rules that block unauthenticated requests to the affected plugin routes is an alternative once the advisory or plugin diff identifies them, with the trade-off that a rule overlapping public donation submission paths can block legitimate donations. Because the missing authorization is reachable without credentials, restricting wp-admin access or adding authentication to the WordPress backend does not mitigate it, and no public exploit code was identified that would justify emergency outage.

Affected VersionsENISA

GiveWP n/a ≤4.19.0.1

Affected Packages

euvd givewp 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

GiveWP is an open-source donation and fundraising plugin for WordPress, maintained by Nexcess (StellarWP) and deployed on nonprofit and fundraising sites where the donation form is typically public by design. The root cause class is CWE-862 Missing Authorization: some plugin operation reachable over HTTP is not gated by a capability or authorization check, so a caller with no WordPress privileges can invoke functionality intended for a more privileged user. The reporting advisory does not identify the specific route, AJAX action, form handler, or parameter involved, so the trigger is not described in the available sources and the precise set of donation records, settings, or fields an attacker can read or alter remains unconfirmed. The CVSS impact metrics (C:L/I:L/A:N) bound the outcome to a limited subset of plugin data rather than site-wide compromise or full administrative takeover, and the rating is driven by the unauthenticated, no-interaction network path rather than by breadth of impact.

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Severity by source

Vendor (Patchstack) PRIMARY 6.5 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
vuln.today AI 6.5 MEDIUM

Remote unauthenticated reachability with no interaction (AV:N/AC:L/PR:N/UI:N) per the broken-access-control description; impact bounded to limited data exposure/modification (C:L/I:L, A:N).

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/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
Low
Availability
None

DescriptionCVE.org

Unauthenticated Broken Access Control in GiveWP <= 4.19.0.1 versions.

Threat Intelligence Overview

EPSS Score
0.2%
Top 89% exploitable
Prevalence
Medium
popular WordPress donation plugin, large but not universal install base
Social Media
1
Sightings
Data Quality
3 sources
Confidence: Low

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

32
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +32
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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