Vulnerabilidades do PaperCut Papercut Ng
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CVEs publicadas que afetam PaperCut Papercut Ng: 8 registro(s), com versões afetadas e correções.cpe:2.3:a:papercut:papercut_ng
CVE-2026-82078
Crítica · 9.1
KEV Urgente · 72 Exploit público CWE-470 28/08/2026
PaperCut NG/MF Unsafe Reflection Vulnerability
An unsafe dynamic class loading vulnerability exists in the database connection utilities of PaperCut MF and PaperCut NG. The application instantiates database driver classes based on configurable driver names without validating against an allowlist of approved drivers. If an attacker can manipulate system configuration parameters, this enables the execution of arbitrary Java bytecode residing on the application classpath under the security context of the PaperCut server process.
CVE-2026-81578
Crítica · 9.8
KEV Urgente · 83 Exploit público CWE-305 28/08/2026
PaperCut NG/MF Missing Authentication for Critical Function Vulnerability
An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.
CVE-2026-6418
Média · 4.9
CWE-36 05/05/2026
PaperCut NG/MF: Path Traversal in Shared Account Synchronization
An issue was discovered in the Shared Account Synchronization component of PaperCut MF (version 25.0.4). The application allows administrative users to configure a source path for account data synchronization.
Due to a lack of proper path validation and sanitization, an authenticated user with administrative privileges can specify arbitrary file paths on the local file system. This allows for the enumeration of directory structures and the unauthorized reading of sensitive text-based configuration or system files.
When the synchronization process is triggered, the application attempts to parse the contents of the specified file, subsequently exposing the data within the application's account management interface. This vulnerability could lead to the disclosure of sensitive system information or configuration details, depending on the permissions of the service account under which the application is running.
CVE-2026-6180
Alta · 8.1
CWE-367 05/05/2026
PaperCut MF: Card truncation on HP readers
A race condition exists in PaperCut MF when processing badge-swipe data from certain HP multifunction devices. Under specific network conditions involving dropped packets and out-of-order sequence counters, the server may incorrectly process fragmented data chunks. If a sequence reset notification fails to reach the server, the server may reject the initial data chunk while erroneously accepting subsequent chunks before a connection reset completes.
This leads to the registration of a truncated badge ID string. While this typically results in an authentication failure, the vulnerability is compounded in environments utilizing custom badge-ID post-processing scripts. In such configurations, the truncated string may be transformed into a valid ID belonging to a different user, leading to unauthorized session establishment (Incorrect User Login) on the device.
CVE-2026-4794
Média · 4.8
CWE-79 30/03/2026
Multiple cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF
Multiple cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF before 25.0.10 allow authenticated administrator users to inject arbitrary web script or HTML code via different UI fields. This could be used to compromise other admininistrator's sessions or perform unauthorized actions via the administrator's authenticated context (e.g. requires an active login session).
CVE-2023-2533
Alta · 8.8
KEV Alta · 56 CWE-352 20/06/2023
PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability
A Cross-Site Request Forgery (CSRF) vulnerability has been identified in
PaperCut NG/MF, which, under specific conditions, could potentially enable
an attacker to alter security settings or execute arbitrary code. This could
be exploited if the target is an admin with a current login session. Exploiting
this would typically involve the possibility of deceiving an admin into clicking
a specially crafted malicious link, potentially leading to unauthorized changes.
CVE-2023-27350
Crítica · 9.8
KEV Urgente · 93 Exploit público Ransomware CWE-284 20/04/2023
PaperCut MF/NG Improper Access Control Vulnerability
This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to exploit this vulnerability. The specific flaw exists within the SetupCompleted class. The issue results from improper access control. An attacker can leverage this vulnerability to bypass authentication and execute arbitrary code in the context of SYSTEM. Was ZDI-CAN-18987.
CVE-2023-27351
Alta · 7.5
KEV Urgente · 73 Exploit público Ransomware CWE-287 20/04/2023
PaperCut NG/MF Improper Authentication Vulnerability
This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Build 63914). Authentication is not required to exploit this vulnerability. The specific flaw exists within the SecurityRequestFilter class. The issue results from improper implementation of the authentication algorithm. An attacker can leverage this vulnerability to bypass authentication on the system. Was ZDI-CAN-19226.