What is the CVSS score of CVE-2023-2533?

CVE-2023-2533 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H. EPSS exploitation probability: 29.2%.

Is there a public PoC exploit available for CVE-2023-2533?

Yes, a public proof-of-concept exploit is available for CVE-2023-2533. Prioritise patching immediately. EPSS: 29.2%.

Papercut Ng CVE-2023-2533

HIGH

Cross-Site Request Forgery (CSRF) (CWE-352)

2023-06-20 help@fluidattacks.com

RCE CSRF Papercut Mf Papercut Ng Papercut

8.8

CVSS 3.1 · NVD

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Vulnerability Assessment

Weakness	CWE CWE-352 OWASP Top 10:2025 A01:2025 - Broken Access Control ASVS 5.0 V3 - Web Frontend Security Anti-CSRF tokens, SameSite cookies MITRE ATT&CK 1 technique across 1 tactic: Initial Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. Sign in to read
Impact	CVSS score of 8.8 (HIGH). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available.
Exploit ScenarioDerived	A remote attacker could trick authenticated users into performing unintended actions by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability.

This Week Schedule remediation this week. Why: HIGH severity + EPSS > 10%.

Exploited in the wild (CISA KEV) No patch listed yet 29.2% exploitation probability (EPSS)

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AnalysisAI

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. Rated high severity (CVSS 8.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Implement anti-CSRF tokens, validate Origin/Referer headers, use SameSite cookie attribute.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified as Cross-Site Request Forgery (CSRF) (CWE-352), which allows attackers to trick authenticated users into performing unintended actions. 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. Affected products include: Papercut Papercut Mf, Papercut Papercut Ng.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.8 HIGH

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Added to CISA KEV

Jul 14, 2026 - 04:22 CISA

CVE Published

Jun 20, 2023 - 15:15 nvd

HIGH 8.8

DescriptionNVD

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.

Threat Intelligence Overview

EPSS Score

29.2%

Top 2% exploitable

Exploit

POC

Public exploit code exists

Data Quality

2 sources

Confidence: Low

NVD

CVE.org

CISA KEV

EPSS

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 Yes

Public POC Yes

EPSS 29.2%

Patch available No

Active threat Yes

Deciding rule

HIGH severity + EPSS > 10%

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

Out-of-Cycle

Exploitation· derived

Active

System Exposure· derived

Open

Automatable· derived

Human Impact· derived

High

Priority Score

143

Low Medium High Critical

KEV: +50

EPSS: +29

CVSS: +44

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Cross-Site Request Forgery MEDIUM

Cross-Site Request Forgery exploits the automatic credential inclusion behavior of web browsers.

Remote Code Execution CRITICAL

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

Affected Products (CPE)NVD

cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*

cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*

More in Papercut Ng

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CVE-2023-27351 HIGH Act Now POC

7.5 Apr 20

Authentication bypass in PaperCut NG and PaperCut MF print management software allows unauthenticated remote attackers t

CVE-2023-27350 CRITICAL Emergency POC

9.8 Apr 20

This vulnerability allows remote attackers to bypass authentication on affected installations of PaperCut NG 22.0.5 (Bui

CVE-2023-39143 CRITICAL Act Now POC

9.8 Aug 04

PaperCut NG and PaperCut MF before 22.1.3 on Windows allow path traversal, enabling attackers to upload, read, or delete

CVE-2023-4568 MEDIUM This Month POC

6.5 Sep 13

PaperCut NG allows for unauthenticated XMLRPC commands to be run by default. Rated medium severity (CVSS 6.5), this vuln

CVE-2024-1222 CRITICAL Act Now

9.8 Mar 14

This allows attackers to use a maliciously formed API request to gain access to an API authorization level with elevated

CVE-2019-12135 CRITICAL Act Now

9.8 Jun 06

An unspecified vulnerability in the application server in PaperCut MF and NG versions 18.3.8 and earlier and versions 19

CVE-2019-8948 CRITICAL Act Now

9.8 Feb 20

PaperCut MF before 18.3.6 and PaperCut NG before 18.3.6 allow script injection via the user interface, aka PC-15163. Rat

CVE-2024-8404 HIGH This Week

7.8 Sep 26

An arbitrary file deletion vulnerability exists in PaperCut NG/MF, specifically affecting Windows servers with Web Print

CVE-2024-4712 HIGH This Week

7.8 May 14

An arbitrary file creation vulnerability exists in PaperCut NG/MF that only affects Windows servers with Web Print enabl

CVE-2024-3037 HIGH This Week

7.8 May 14

An arbitrary file deletion vulnerability exists in PaperCut NG/MF, specifically affecting Windows servers with Web Print

CVE-2023-3486 HIGH This Week

7.5 Jul 25

An authentication bypass exists in PaperCut NG versions 22.0.12 and prior that could allow a remote, unauthenticated att

CVE-2024-1882 HIGH This Week

7.2 Mar 14

This vulnerability allows an already authenticated admin user to create a malicious payload that could be leveraged for

Same weakness CWE-352 – Cross-Site Request Forgery (CSRF)

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References

Advisories & patches

ADVISORY https://www.papercut.com/kb/Main/SecurityBulletinJune2023 REF https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-2533

Search Externally

GitHub PoC

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