Which versions of ProjeQtor are affected by CVE-2026-41464?

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…

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

Q: 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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

EUVD-2026-25867 HIGH

Missing Authorization (CWE-862)

2026-04-27 VulnCheck

Privilege Escalation Authentication Bypass Information Disclosure PHP Projeqtor

7.1

CVSS 4.0 · NVD

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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

Privileges Required

Low

User Interaction

None

Scope

Lifecycle Timeline

Analysis Generated

Jul 24, 2026 - 01:55 vuln.today

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)

EUVD ID Assigned

Apr 27, 2026 - 15:30 euvd

EUVD-2026-25867

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.

AnalysisAI

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.

Technical ContextAI

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.

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.