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ProjeQtor CVE-2026-41462

| EUVDEUVD-2026-25865 CRITICAL
SQL Injection (CWE-89)
2026-04-27 VulnCheck
9.3
CVSS 4.0 · NVD
View

Attack ChainAIDerived

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

  1. Access
    Identify exposed ProjeQtor login page
  2. Delivery
    Craft SQL payload in username field
  3. Exploit
    Submit to authentication endpoint
  4. Execution
    Injected SQL executes in database
  5. Persist
    Create admin account or dump data
  6. Impact
    Escalate to OS commands if DB privileged

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Parameterized queries, prepared statements
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Persistence

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

Exploitation Conditions

Exploitation requires only network reachability of the ProjeQtor authentication/login endpoint and a version in the 7.0-12.4.3 range; no authentication, credentials, or user interaction are needed (PR:N/UI:N/AT:N), so it works against default configurations. The username/login field at the login endpoint is the injectable parameter. The primary limiting factor is scope of impact: privilege-escalation to operating-system command execution is conditional on the backing database account holding elevated permissions (e.g., FILE/OS-exec rights) - where the DB user is restricted, impact is bounded to data read/write and account creation within the database. The other real-world limiter is exposure: the instance must be network-accessible to the attacker.

Impact

Signals are mostly aligned toward high severity but with one notable tension. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N, VC/VI/VA all High, score 9.3) indicates trivial remote, unauthenticated, no-interaction exploitation with total impact, and SSVC reinforces this: exploitation=poc, automatable=yes, technical impact=total. Public exploit code is confirmed available. The contrasting signal is EPSS at just 0.09% (26th percentile), which is low; this reflects that the product is niche rather than that the bug is hard - automatable pre-auth SQLi with PoCs is genuinely dangerous wherever ProjeQtor is exposed. It is NOT in CISA KEV, so there is no confirmed active exploitation. Net: a real, high-priority issue for any organization running an internet-facing ProjeQtor instance, but the low overall internet footprint tempers mass-exploitation likelihood, suggesting opportunistic/targeted rather than worm-scale risk.

Exploit ScenarioDerived

An attacker locates an internet-exposed ProjeQtor login page and submits a crafted username value containing SQL syntax to the authentication endpoint, requiring no credentials or user interaction. Using the public PoC (e.g., github.com/0xBlackash/CVE-2026-41462), they inject SQL to dump user/password tables or insert a new administrator account, and if the database user is over-privileged they pivot to executing operating-system commands on the database host.

Act Now Prioritize within 24-48h. Why: CRITICAL severity + public POC available.
No patch listed yet 0.1% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 24, 2026

SQL injection in ProjeQtor's login endpoint lets unauthenticated remote attackers inject arbitrary SQL through the username field, because the login variable is concatenated directly into a query without parameterization. Affecting versions 7.0 through 12.4.3, it can be leveraged to create privileged accounts, exfiltrate database contents, and - where the DB account has elevated OS privileges - achieve operating-system command execution. Publicly available exploit code exists (VulnCheck advisory and multiple PoCs), though EPSS remains low at 0.09% and it is not listed in CISA KEV.

RemediationAI

Upgrade ProjeQtor to a release later than 12.4.3 that contains the login-parameterization fix; the input does not specify an exact fixed version, so treat this as Patch available per vendor advisory and confirm the fixed build directly with ProjeQtor (https://www.projeqtor.com) and the VulnCheck advisory (https://www.vulncheck.com/advisories/projeqtor-unauthenticated-sql-injection-via-login) before deploying. Until patched, restrict network reachability of the login/authentication endpoint by placing the application behind a VPN or IP allowlist, and deploy a WAF rule to block SQL metacharacters and injection patterns in the username field (trade-off: WAF signatures can be bypassed and may cause false positives on legitimate logins). Additionally, enforce least privilege on the ProjeQtor database account - remove FILE, SUPER, and OS-command-capable privileges so a successful injection cannot escalate to operating-system command execution (trade-off: none significant, but requires validating the app still functions with reduced grants). Do not rely on these controls as a permanent substitute for the vendor patch.

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 / QMS web application backed by a relational database (typically MySQL/MariaDB). The flaw is a classic CWE-89 (Improper Neutralization of Special Elements used in an SQL Command) issue: the authentication handler builds its lookup query by string-concatenating the attacker-supplied login/username value rather than using prepared statements or bound parameters. Because this occurs at the pre-authentication login endpoint, the injected SQL executes with whatever rights the application's database user holds. The single CPE cpe:2.3:a:projeqtor:projeqtor:*:*:*:*:*:*:*:* confirms the affected component is the ProjeQtor application itself across the vulnerable version band, not a bundled third-party library.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 9.3 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
vuln.today AI 9.8 CRITICAL

Pre-auth, remote, no-interaction SQL injection with low complexity gives AV:N/AC:L/PR:N/UI:N; full database confidentiality, integrity, and availability impact yields C/I/A:H.

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Attack Requirements
None
Privileges Required
None
User Interaction
None
Vulnerable system: Confidentiality
High
Vulnerable system: Integrity
High
Vulnerable system: Availability
High
Subsequent system: Confidentiality
None
Subsequent system: Integrity
None
Subsequent system: Availability
None

Lifecycle Timeline

3
PoC Detected
Apr 27, 2026 - 18:36 vuln.today
Public exploit code
CVSS changed
Apr 27, 2026 - 16:22 NVD
9.8 (CRITICAL) 9.3 (CRITICAL)
CVE Published
Apr 27, 2026 - 15:08 nvd
CRITICAL 9.3

DescriptionCVE.org

ProjeQtor versions 7.0 through 12.4.3 contain an unauthenticated SQL injection vulnerability in the login functionality where the login variable is directly concatenated into a SQL query without parameterization or sanitization. Attackers can inject arbitrary SQL expressions through the username field at the authentication endpoint to create privileged accounts, read sensitive data, and execute operating system commands if the database user has elevated permissions.

Executive ViewAI

Why It Matters

ProjeQtor versions 7.0-12.4.3 contain a critical SQL injection vulnerability in the login page that allows unauthenticated attackers to compromise your project management system and underlying databases. Any organization running these versions risks unauthorized access to project data, internal communications, team credentials, and potentially other connected systems, with no vendor patch currently available to address the threat.

Business Impact: Severe
Compensating Controls

Implement Web Application Firewall (WAF) rules to block SQL injection payloads in login requests; restrict database user privileges and disable unnecessary OS-level database access; enable comprehensive database query logging and audit trails; segment ProjeQtor systems from production networks using network firewalls; rotate all database and system credentials; implement database connection limits and rate limiting; monitor authentication logs for unusual patterns; consider restricting login page access to specific IP ranges if feasible.

Threat Intelligence Overview

EPSS Score
0.1%
Top 74% exploitable
Prevalence
Low
niche open-source project-management app, limited enterprise footprint
Exploit
POC
Public exploit code exists
Data Quality
6 sources
Confidence: High

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 CRITICAL
CISA KEV No
Public POC Yes
EPSS 0.1%
Patch available No
Active threat No
Deciding rule
CRITICAL severity + public POC available
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
Out-of-Cycle
Exploitation
Poc
System Exposure· derived
Open
Automatable
Yes
Human Impact
Very High
Technical Impact
Total

Priority Score

66
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +46
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

SQL injection exploits the way applications construct database queries by mixing user input directly into SQL statements.

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

CVE-2024-29387 HIGH POC
8.8 Apr 04

projeqtor up to 11.2.0 was discovered to contain a remote code execution (RCE) vulnerability via the component /view/pri

CVE-2018-18924 HIGH POC
8.8 Nov 04

The image-upload feature in ProjeQtOr 7.2.5 allows remote attackers to execute arbitrary code by uploading a .shtml file

CVE-2026-41463 HIGH POC
8.7 Apr 27

Remote code execution in ProjeQtor 7.0 through 12.4.3 arises from a ZipSlip flaw in the plugin upload feature, where aut

CVE-2013-6164 HIGH POC
7.5 Nov 14

SQL injection vulnerability in view/objectDetail.php in Project'Or RIA 3.4.0 allows remote attackers to execute arbitrar

CVE-2026-41465 HIGH POC
7.1 Apr 27

Arbitrary file disclosure in ProjeQtor 7.0 through 12.4.3 allows authenticated attackers to read .log files anywhere on

CVE-2026-41464 HIGH POC
7.1 Apr 27

Sensitive data disclosure in ProjeQtor 7.0 through 12.4.3 lets an authenticated guest-level user retrieve other users' r

CVE-2024-29386 MEDIUM POC
5.4 Apr 04

projeqtor up to 11.2.0 was discovered to contain a SQL injection vulnerability via the component /view/criticalResourceE

CVE-2026-41467 MEDIUM POC
5.1 Apr 27

Stored cross-site scripting in ProjeQtor 7.0 through 12.4.3 allows authenticated attackers to upload HTML or HTM files v

CVE-2026-41466 MEDIUM POC
5.1 Apr 27

Stored cross-site scripting in ProjeQtor 7.0 through 12.4.3 enables authenticated users to inject persistent malicious H

CVE-2017-11760 HIGH
8.8 Jul 31

uploadImage.php in ProjeQtOr before 6.3.2 allows remote authenticated users to execute arbitrary PHP code by uploading a

CVE-2013-6163 MEDIUM POC
4.3 Nov 14

Multiple cross-site scripting (XSS) vulnerabilities in ProjeQtOr (formerly Project'Or RIA) before 4.0.0 allow remote att

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