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sysPass CVE-2026-65708

| EUVDEUVD-2026-48714 HIGH
Authorization Bypass Through User-Controlled Key (CWE-639)
2026-07-24 VulnCheck GHSA-m6m7-rqhj-c4vv
8.6
CVSS 4.0 · Vendor: VulnCheck
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Attack ChainAIDerived

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

  1. Access
    Authenticate with low privileges
  2. Exploit
    Brute-force numeric file IDs
  3. Execution
    Request attachment via download/view endpoint
  4. Impact
    Access or manipulate files without ACL permission

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Object-level authorization, IDOR prevention
Exploitation Conditions

Requires authenticated access to sysPass with any user role. No specific configuration or feature must be enabled; the insecure direct object reference is inherently present in the default AccountFileController of all affected versions. The user does not need elevated privileges-any authenticated session can trigger the vulnerability.

Impact

The CVSS 4.0 score of 8.6 reflects high impact (VC:H/VI:H) but requires low privileges (PR:L). EPSS at 0.22% and 13th percentile indicates a low likelihood of exploitation, despite the public proof-of-concept. The SSVC assessment (exploitation: poc, automatable: no, technical impact: partial) aligns with this view. The vulnerability is serious once exploited, but the authentication requirement and low exploitation probability mean it is not an immediate emergency. Real-world risk is moderate, not critical, for most deployments.

Exploit ScenarioDerived

An attacker with low-privileged authenticated access enumerates numeric file IDs by iterating requests to the download or view endpoint. The attacker retrieves sensitive attachments (e.g., SSH keys, password lists) from accounts they are not authorized to access. Public proof-of-concept code demonstrates this exploitation technique.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 27, 2026

Authenticated attackers can bypass access controls in sysPass 3.2.11 and earlier to access, download, or delete any account file attachment, regardless of their ACL permissions, by exploiting missing authorization checks in AccountFileController. Public exploit code is available, but the EPSS score of 0.22% indicates low likelihood of widespread exploitation.

RemediationAI

No vendor-released patch has been identified at the time of analysis. As a workaround, restrict access to the AccountFileController endpoints using a Web Application Firewall rule that blocks direct requests to /accountFile/ paths for unprivileged users, or disable the file attachment feature entirely if not essential. These mitigations may break legitimate functionality; monitor for unintended impacts and apply a vendor patch immediately once available.

Affected VersionsENISA

sysPass 0 ≤3.2.11

Affected Packages

euvd syspass 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

sysPass is a PHP-based password manager developed by nuxsmin, as indicated by CPE cpe:2.3:a:nuxsmin:syspass:*:*:*:*:*:*:*:*. The vulnerability is classified as CWE-639 (Insecure Direct Object Reference), arising from insufficient authorization verification in the AccountFileController component. The controller fails to validate if the authenticated user has the necessary account-level access controls before performing file operations (download, view, delete, upload, list). Because file objects are referenced by predictable numeric IDs, an attacker can iterate over IDs to manipulate any attachment within the vault, undermining the entire access control model.

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Severity by source

Vendor (VulnCheck) PRIMARY 8.6 HIGH
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
vuln.today AI 8.1 HIGH

Network vector, low complexity, low privileges required, no user interaction, and high confidentiality/integrity impact.

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

Primary rating from Vendor (VulnCheck).

CVSS VectorVendor: VulnCheck

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

DescriptionCVE.org

sysPass through version 3.2.11 contains an insecure direct object reference vulnerability that allows any authenticated attacker to access account file attachments belonging to accounts they do not have ACL permissions for by exploiting missing authorization checks in AccountFileController. Attackers can supply arbitrary numeric file IDs through the download, view, delete, upload, and list actions to enumerate and manipulate any attachment in the vault, bypassing account-level access controls entirely.

Threat Intelligence Overview

EPSS Score
0.2%
Top 87% exploitable
Prevalence
Low
open-source password manager with niche enterprise adoption
Exploit
POC
Public exploit code exists
Social Media
2
Sightings
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 HIGH
CISA KEV No
Public POC Yes
EPSS 0.2%
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· derived
Scheduled
Exploitation
Poc
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

63
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +43
PoC: +20
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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