Papercut Ng Mf
Monthly
Username enumeration is possible in PaperCut NG/MF via an observable timing side-channel in the authentication component, exploitable by unauthenticated remote attackers. The system conditionally executes password hash comparison only when a submitted username corresponds to a valid account, producing a measurable latency difference that reveals account existence. No public exploit code or CISA KEV listing has been identified at time of analysis; however, with a CVSS 4.0 score of 6.9 and an AV:N/PR:N vector, the attack surface is entirely remote and requires no credentials, making it accessible to any attacker with network reach to the login endpoint.
PaperCut NG/MF's login component fails to enforce account lockout or rate-limiting controls in certain configurations, allowing unauthenticated remote attackers to conduct unrestricted brute-force or credential-stuffing attacks against user accounts. The CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N) confirms no authentication or user interaction is required, though the 'in some configurations' qualifier in the CVE description indicates exploitation is conditional on the absence of hardening controls. PaperCut published a security bulletin on August 3, 2026; no public exploit code or CISA KEV listing has been identified at time of analysis.
PaperCut MF version 25.0.4 allows authenticated administrators to read arbitrary files on the server through insufficient path validation in the Shared Account Synchronization component, exposing sensitive configuration and system files via the account management interface. The vulnerability requires administrative privileges and attack complexity involves timing (AT:P), limiting real-world exploitation scope despite network accessibility.
Race condition in PaperCut MF badge-swipe processing from HP multifunction devices allows unauthorized user login when custom badge-ID post-processing scripts transform truncated badge strings into valid credentials of different users. The vulnerability requires specific network conditions (dropped packets, out-of-order sequence counters, failed sequence reset notifications) and custom script configuration, affecting physical device authentication in networked printing environments. No public exploit identified at time of analysis.
PaperCut NG/MF embedded application on Konica Minolta multifunction devices transmits sensitive session data over an insecure communication channel, enabling session hijacking and potential credential theft or phishing attacks against end users. The vulnerability affects all versions of the embedded application and was discovered internally by PaperCut; no public exploit code or active exploitation has been confirmed at this time.
Stored cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF versions before 25.0.10 allow authenticated administrator users to inject malicious scripts via multiple UI fields, potentially compromising other administrators' sessions and enabling unauthorized actions within the administrator context. The vulnerability requires valid administrator credentials and an active login session to exploit, limiting exposure to trusted administrative users but creating significant insider risk.
Username enumeration is possible in PaperCut NG/MF via an observable timing side-channel in the authentication component, exploitable by unauthenticated remote attackers. The system conditionally executes password hash comparison only when a submitted username corresponds to a valid account, producing a measurable latency difference that reveals account existence. No public exploit code or CISA KEV listing has been identified at time of analysis; however, with a CVSS 4.0 score of 6.9 and an AV:N/PR:N vector, the attack surface is entirely remote and requires no credentials, making it accessible to any attacker with network reach to the login endpoint.
PaperCut NG/MF's login component fails to enforce account lockout or rate-limiting controls in certain configurations, allowing unauthenticated remote attackers to conduct unrestricted brute-force or credential-stuffing attacks against user accounts. The CVSS 4.0 vector (AV:N/AC:L/PR:N/UI:N) confirms no authentication or user interaction is required, though the 'in some configurations' qualifier in the CVE description indicates exploitation is conditional on the absence of hardening controls. PaperCut published a security bulletin on August 3, 2026; no public exploit code or CISA KEV listing has been identified at time of analysis.
PaperCut MF version 25.0.4 allows authenticated administrators to read arbitrary files on the server through insufficient path validation in the Shared Account Synchronization component, exposing sensitive configuration and system files via the account management interface. The vulnerability requires administrative privileges and attack complexity involves timing (AT:P), limiting real-world exploitation scope despite network accessibility.
Race condition in PaperCut MF badge-swipe processing from HP multifunction devices allows unauthorized user login when custom badge-ID post-processing scripts transform truncated badge strings into valid credentials of different users. The vulnerability requires specific network conditions (dropped packets, out-of-order sequence counters, failed sequence reset notifications) and custom script configuration, affecting physical device authentication in networked printing environments. No public exploit identified at time of analysis.
PaperCut NG/MF embedded application on Konica Minolta multifunction devices transmits sensitive session data over an insecure communication channel, enabling session hijacking and potential credential theft or phishing attacks against end users. The vulnerability affects all versions of the embedded application and was discovered internally by PaperCut; no public exploit code or active exploitation has been confirmed at this time.
Stored cross-site scripting (XSS) vulnerabilities in PaperCut NG/MF versions before 25.0.10 allow authenticated administrator users to inject malicious scripts via multiple UI fields, potentially compromising other administrators' sessions and enabling unauthorized actions within the administrator context. The vulnerability requires valid administrator credentials and an active login session to exploit, limiting exposure to trusted administrative users but creating significant insider risk.