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PaperCut Hive CVE-2026-11744

| EUVDEUVD-2026-85813 LOW
Cross-site Scripting (XSS) (CWE-79)
2026-09-24 eb41dac7-0af8-4f84-9f6d-0272772514f4 GHSA-wqwx-h8c4-gmvr
3.8
CVSS 4.0 · Vendor: eb41dac7-0af8-4f84-9f6d-0272772514f4
View

Attack ChainAIDerived

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

  1. Access
    Gain physical access to Ricoh MFP
  2. Delivery
    Present crafted NFC card or emulator
  3. Exploit
    Malicious input reaches web view unsanitized
  4. Execution
    Script executes in application UI context
  5. Impact
    Disclose information or perform unauthorized actions

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Execution

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

Exploitation Conditions

Requires physical access to a Ricoh device running the PaperCut Hive embedded application AND a specially crafted NFC card or NFC emulator that the device reads. Exploitation depends on the device supporting/using NFC card authentication (a configured deployment feature), and the injected payload only executes within the application's web view UI context - there is no remote or network path. Limiting factors: physical presence at the device, an NFC-capable and NFC-enabled configuration, and impact scoped to the app UI rather than the underlying OS. Exploit maturity is Unproven with no public exploit code.

Impact

Real-world risk is LOW despite the alarming 'arbitrary code execution' phrasing in the description. The vendor CVSS 4.0 vector (AV:P/AC:L/PR:N/UI:N/VC:H/VI:L/VA:N) yields only 3.8 because the attack vector is Physical (AV:P) - the attacker must be standing at the Ricoh multifunction device with a crafted NFC card or emulator. This physical-proximity requirement is the dominant risk-limiting factor and cannot be exploited remotely or at scale. Exploit maturity is explicitly Unproven (E:U in the vector), no CISA KEV listing is present, no EPSS score was provided, and no public exploit code is referenced - so this is 'no public exploit identified at time of analysis.' The CWE-79 (XSS) classification is consistent with the description's 'execute arbitrary code within the context of the application's user interface' (i.e., script execution inside the embedded web view, not OS-level code execution), which makes the 'RCE' tag potentially overstated. The signals are internally consistent: high-CVSS narrative language but low actual base score driven by physical access. This is NOT a priority-patch scenario for most environments - it is a physical/insider-threat consideration for shared kiosk-style MFP deployments.

Exploit ScenarioDerived

An attacker with physical access to a Ricoh MFP running PaperCut Hive taps a specially crafted NFC card (or NFC emulator) that carries an unsanitized payload; during card-read processing the payload is passed unfiltered into the device's web view, executing attacker-controlled script in the UI context. This could surface other users' print data or trigger unauthorized actions at the panel. No public exploit code is identified, and exploit maturity is rated Unproven.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 24, 2026

A specially crafted NFC card or NFC emulator can feed unsanitized data into the web view used by the PaperCut Hive embedded application on Ricoh devices, allowing an attacker with physical access to the device panel to execute code within the application's UI context and potentially trigger unauthorized actions or disclose information. Exploitation requires hands-on physical access to an NFC-enabled device that is configured to use NFC card authentication, and the resulting execution is confined to the embedded app's web view rather than the underlying Ricoh firmware or OS. No public exploit code has been identified at time of analysis and the flaw is not in CISA KEV; with a CVSS 4.0 base score of 3.8 (assessed CVSS 3.1 AV:P/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N), real-world risk is LOW despite the 'arbitrary code execution' phrasing in the vendor description.

RemediationAI

The available data does not include an exact fixed version number, so check the PaperCut security bulletin (https://www.papercut.com/kb/Main/security-bulletin-sep-2026/) for the vendor-released patched build of the PaperCut Hive embedded application for Ricoh and upgrade or re-deploy the embedded app as directed there; patching the embedded client is the only complete fix because the missing sanitization is in the client's tag-to-web-view path. If an immediate update cycle is not possible, the highest-value compensating control is to disable NFC card authentication on affected Ricoh devices and fall back to badge/PIN or card-swipe/contact authentication - the trade-off is degraded tap-and-go convenience and possible re-enrollment of user credentials, but it removes the vulnerable input channel entirely. In parallel, restrict physical access to device front panels (place MFP fleet devices in staffed or badge-controlled areas, enable panel lock/session timeouts and, where supported, the device's own admin lock-down) so that an attacker cannot present a crafted tag; this reduces but does not eliminate exposure, since legitimate users can still be induced to tap an attacker's tag. Network-side protections such as segmentation or WAF rules do not apply well here because there is no remote attack path - the payload is delivered by proximity, not over the network. Also consider enabling logging/monitoring of on-panel web view activity and unexpected authentication events, and reassess exposure by inventorying which devices have NFC authentication enabled and are reachable by non-staff individuals.

Affected VersionsENISA

PaperCut Hive 2.0.0 <2.3.0

Affected Packages

euvd papercut_hive fix: 2.3.0

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

The root-cause class is CWE-79 (Improper Neutralization of Input During Web Page Generation), i.e. a cross-site scripting-style injection, even though the vendor description frames it as an input validation flaw. The vulnerable data path begins with the NFC card reader on a Ricoh multifunction device running the PaperCut Hive embedded client: card data is read and then passed into the application's web view interface without adequate sanitization or output encoding, so markup or script embedded in the tag payload is interpreted as active content by the web view rather than treated as inert text. Because the injection point is the web view (a browser-engine UI layer), 'arbitrary code execution' here means script execution inside that UI context, not native code execution on the device's operating system - which is consistent with the assessed scope change (S:C) and high confidentiality impact (C:H) coupled only with low integrity (I:L) and no availability impact (A:N) in the CVSS 4.0 vector (AV:P/AC:L/AT:N/PR:N/UI:N). The attack is physical-only (AV:P) and requires no privileges (PR:N) and no user interaction beyond the attacker presenting the tag (UI:N). The injection channel is NFC tag payloads, which are trivially writable with commodity hardware or fully emulatable from a phone, so the technical barrier to crafting the input is low; the real barrier is the requirement to be physically present at, and to be able to cause a read by, an NFC-enabled deployment. No CPE identifiers were supplied with the source data, so the exact affected build/version range of the PaperCut Hive embedded application for Ricoh cannot be enumerated from the available intelligence alone.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (eb41dac7-0af8-4f84-9f6d-0272772514f4) PRIMARY 3.8 LOW
CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:H/SI:L/SA:N/E:U
vuln.today AI 6.1 MEDIUM

Physical access to the device is mandatory (AV:P) with no auth (PR:N); NFC input crossing into the web view is a scope change (S:C), yielding confidentiality-focused impact (C:H, I:L, A:N).

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

Primary rating from Vendor (eb41dac7-0af8-4f84-9f6d-0272772514f4).

CVSS VectorVendor: eb41dac7-0af8-4f84-9f6d-0272772514f4

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

Lifecycle Timeline

1
Patch available
Sep 24, 2026 - 08:15 EUVD

DescriptionCVE.org

An input validation vulnerability exists in the PaperCut Hive embedded application for Ricoh devices. The application fails to properly sanitize input received during the NFC card reading process before passing it to the application's web view interface. A local attacker with physical access to the device and a specially crafted NFC card or emulator could exploit this flaw to execute arbitrary code within the context of the application's user interface. This could result in unauthorized actions or information disclosure.

Threat Intelligence Overview

EPSS Score
0.2%
Top 95% exploitable
Prevalence
Medium
PaperCut print management is common in enterprise/education, but Hive-on-Ricoh embedded app is a subset
Social Media
1
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 LOW
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
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
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Low
Technical Impact
Partial

Priority Score

19
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +19
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.

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

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

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