What is the CVSS score of CVE-2026-41464?

CVE-2026-41464 has a CVSS 4.0 base score of 7.1 (High). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N. EPSS exploitation probability: 0.1%.

Is there a public PoC exploit available for CVE-2026-41464?

Yes, a public proof-of-concept exploit is available for CVE-2026-41464. Prioritise patching immediately. EPSS: 0.1%.

How to fix or mitigate CVE-2026-41464?

Within 24 hours: audit all ProjeQtor guest accounts currently in your environment and review objectDetail.php access logs for suspicious activity; urgently evaluate and disable guest account functionality if operationally feasible. Within 7 days: deploy a Web Application Firewall (WAF) rule blocking guest-level requests to objectDetail.php, implement network segmentation restricting ProjeQtor to authorized users only, and rotate all administrator API keys and credentials. Within 30 days: plan and execute migration to an unaffected ProjeQtor release or replace with an alternative project management platform; conduct comprehensive password reset for all ProjeQtor user accounts.

ProjeQtor CVE-2026-41464

EUVD-2026-25867 HIGH

Missing Authorization (CWE-862)

2026-04-27 VulnCheck

PHP Authentication Bypass Privilege Escalation Information Disclosure Projeqtor

7.1

CVSS 4.0 · NVD

View

Attack ChainAIDerived

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

Access

Obtain guest-level account
Delivery

Request objectDetail.php for other users
Exploit

Enumerate user object IDs
Execution

Extract admin password hash and API key
Persist

Authenticate as administrator
Impact

Escalate to full privileges

Vulnerability Assessment

Weakness	CWE CWE-862 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. Sign in to read
Exploitation Conditions	Requires a valid authenticated ProjeQtor session at guest-level privilege or higher (CVSS PR:L) - the attacker must already possess or be able to register a low-tier account, which is the primary limiting factor; fully unauthenticated exploitation is not indicated. Once authenticated, the attacker simply requests the objectDetail.php endpoint directly for objects belonging to other users, with no special product configuration, feature flag, or non-default deployment mode needed. What limits exploitation: the need for that low-privilege credential, network reachability of the application (AV:N), and manual per-object-ID enumeration (SSVC Automatable:no) to locate high-value records such as administrator user objects; no user interaction is required (UI:N). Affected only on ProjeQtor 7.0-12.4.3.
Impact	The vendor CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N, base 7.1) is internally consistent: network-reachable, low complexity, requires a low-privilege (guest) authenticated account, no user interaction, high confidentiality impact only with no integrity or availability effect. This aligns with the description and CWE-862. Counterbalancing signals lower the operational urgency: EPSS is only 0.06% (18th percentile), SSVC scores Exploitation:none, Automatable:no, Technical Impact:partial, and there is no CISA KEV listing. However, publicly available exploit code (VulnCheck advisory plus two write-ups) meaningfully raises the practical likelihood over the raw EPSS number. Net assessment: a real, credible confidentiality/priv-esc issue rather than a theoretical high-CVSS one, but gated behind needing a valid low-privilege account and requiring per-record enumeration (not automatable), so it is a prompt-patch item rather than an emergency. Note the confidentiality-only scoring: CVSS records no integrity/availability impact even though harvested admin credentials enable downstream privilege escalation, so the follow-on impact exceeds the direct base score - treat it as higher effective risk than 7.1 alone suggests.
Exploit ScenarioDerived	An attacker registers or is granted a guest-level ProjeQtor account, then directly requests objectDetail.php for user objects they do not own, iterating object IDs to dump other users' records. From the returned data they harvest an administrator's password hash and API key, crack or replay them, and log in as admin to escalate privileges. Public exploit write-ups and code are available (damiri.fr, gryfman.fr, VulnCheck), lowering the skill needed.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).

No patch listed yet 0.1% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Jul 24, 2026

Sensitive data disclosure in ProjeQtor 7.0 through 12.4.3 lets an authenticated guest-level user retrieve other users' records - including password hashes and API keys - by directly calling the objectDetail.php endpoint, which fails to enforce ownership or role checks (CWE-862). Because the exposed administrator credentials enable privilege escalation, the flaw effectively promotes a low-privilege account to full control. Publicly available exploit code exists, though EPSS is low (0.06%, 18th percentile) and it is not on CISA KEV, indicating no public exploit identified as actively used in the wild.

RemediationAI

Upgrade ProjeQtor to a release later than 12.4.3 that contains the objectDetail.php authorization fix; no exact patched version number is provided in the input, so consult the vendor at https://www.projeqtor.com and the VulnCheck advisory (https://www.vulncheck.com/advisories/projeqtor-missing-authorization-via-objectdetail-php) for the fixed build before deploying. As compensating controls until patched: restrict network access to the ProjeQtor instance to trusted users (VPN/IP allowlist) to shrink the pool of accounts that can reach the endpoint; tighten account provisioning by disabling or removing guest-level accounts and self-registration so an attacker cannot obtain the minimal credential the exploit needs (trade-off: blocks legitimate guest/collaborator workflows); and, since credential material may already be exposed, rotate all user passwords and regenerate API keys after upgrading (trade-off: forces re-authentication and breaks integrations using old keys). If feasible, front the endpoint with a WAF/reverse-proxy rule limiting objectDetail.php parameters or rate to hinder ID enumeration, accepting possible false positives on legitimate detail views.

Affected VersionsENISA

Projeqtor 7.0 ≤12.4.3

Affected Packages

euvd projeqtor 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

ProjeQtor is a PHP-based open-source project management/collaboration application (CPE cpe:2.3:a:projeqtor:projeqtor). The objectDetail.php endpoint returns the detail view of an arbitrary object identified by parameters in the request. The root cause is CWE-862 (Missing Authorization): the endpoint authenticates the session but never performs an object-level access-control check binding the requested record to the caller's identity or role. As a result, any logged-in principal - even a guest-tier account - can enumerate object IDs and read fields (user records containing password hashes and API keys) that should be restricted, an insecure-direct-object-reference-style horizontal and vertical access control failure.

Know when Projeqtor gets its next vulnerability

Watch products and get an email when something new is published
Check this CVE against your own stack and servers
Exploit and PoC references, threat intelligence from 22 sources

Continue with Google Continue with GitHub

No credit card · 7-day full trial

Severity by source

NVD PRIMARY 7.1 HIGH

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

vuln.today AI 6.5 MEDIUM

Network-reachable endpoint needing a low-privilege guest account (PR:L), no interaction, exposes credentials for high confidentiality impact with no integrity or availability effect.

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

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

Primary rating from NVD.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

Low

User Interaction

None

Vulnerable system: Confidentiality

High

Vulnerable system: Integrity

None

Vulnerable system: Availability

None

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

PoC Detected

Apr 27, 2026 - 18:35 vuln.today

Public exploit code

Severity Changed

Apr 27, 2026 - 16:22 NVD

MEDIUM HIGH

CVSS changed

Apr 27, 2026 - 16:22 NVD

6.5 (MEDIUM) 7.1 (HIGH)

CVE Published

Apr 27, 2026 - 15:10 nvd

HIGH 7.1

DescriptionCVE.org

ProjeQtor versions 7.0 through 12.4.3 contain a missing authorization vulnerability in the objectDetail.php endpoint that allows authenticated users with guest-level privileges to retrieve sensitive data belonging to other users including password hashes and API keys. Attackers can bypass access controls by directly accessing the endpoint without ownership or role-based validation to extract administrator credentials and perform privilege escalation.

Executive ViewAI

Why It Matters

ProjeQtor versions 7.0 through 12.4.3 contain an access control flaw in the objectDetail.php endpoint that allows guest-level users to retrieve other users' sensitive data, including administrator password hashes and API keys, enabling immediate privilege escalation to full system control. Organizations running unpatched ProjeQtor instances face direct risk of complete system compromise. Publicly available exploit code exists; no vendor patch is currently available.

Business Impact: High

Compensating Controls

Disable or strictly limit guest account creation in ProjeQtor; deploy WAF rules restricting objectDetail.php to administrative users only; isolate ProjeQtor on trusted networks with strict ingress controls; enable detailed audit logging and real-time alerting for credential access attempts; rotate all API keys and force password resets for all user accounts; monitor connected systems and third-party integrations using ProjeQtor credentials for signs of compromise.

Threat Intelligence Overview

EPSS Score

0.1%

Top 82% exploitable

Prevalence

Low

niche open-source project-management app, limited enterprise footprint

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

EUVD

NVD

CVE.org

EPSS

Vulnrichment

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 Yes

EPSS 0.1%

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

Human Impact

High

Technical Impact

Partial

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +36

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Authentication Bypass CRITICAL

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

Privilege Escalation HIGH

Privilege escalation occurs when an attacker leverages flaws in access control mechanisms to gain permissions beyond what they were originally granted.

Information Disclosure MEDIUM

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