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Known Exploited Vulnerability
8.8
HIGH CVSS 3.1
CVE-2023-2533
PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability - [Actively Exploited]
Description

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.

INFO

Published Date :

June 20, 2023, 3:15 p.m.

Last Modified :

July 29, 2025, 3:08 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

PaperCut NG/MF contains a cross-site request forgery (CSRF) vulnerability, which, under specific conditions, could potentially enable an attacker to alter security settings or execute arbitrary code.

Required Action :

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes :

https://www.papercut.com/kb/Main/SecurityBulletinJune2023 ; https://nvd.nist.gov/vuln/detail/CVE-2023-2533

Affected Products

The following products are affected by CVE-2023-2533 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Papercut papercut_ng
2 Papercut papercut_mf
: Total Affected Vendor : 1 | Products : 2
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH [email protected]
CVSS 3.1 HIGH [email protected]
Solution
This information is provided by the 3rd party feeds.
  • Upgrade to PaperCut NG version 20.1.8, 21.2.12, 22.1.1 or later.
Public PoC/Exploit Available at Github

CVE-2023-2533 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-2533.

URL Resource
https://fluidattacks.com/advisories/arcangel/ Exploit Third Party Advisory
https://www.papercut.com/kb/Main/SecurityBulletinJune2023 Vendor Advisory
https://fluidattacks.com/advisories/arcangel/ Exploit Third Party Advisory
https://www.papercut.com/kb/Main/SecurityBulletinJune2023 Vendor Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-2533 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-2533 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
allinsthon/CVE-2023-2533

None

Updated: 3 weeks, 4 days ago
0 stars 0 fork 0 watcher
Born at : July 30, 2025, 9:11 a.m. This repo has been linked 1 different CVEs too.
Profile Photo
ums91/CISA_BOT

CISA Bot is a GitHub bot that automatically monitors the Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) Catalog. When new vulnerabilities are published in the KEV, the bot creates GitHub issues in this repository with detailed information about each vulnerability.

Python

Updated: 3 days, 11 hours ago
2 stars 1 fork 1 watcher
Born at : Oct. 29, 2024, 10:19 a.m. This repo has been linked 201 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-2533 vulnerability anywhere in the article.

  • The Cyber Express
CISA Adds Cisco ISE and PaperCut Vulnerabilities to Known Exploited Vulnerabilities Catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has issued a critical alert, adding three high-impact vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog. These inclu ... Read more

Published Date: Jul 29, 2025 (3 weeks, 5 days ago)
  • CybersecurityNews
CISA Warns of PaperCut RCE Vulnerability Exploited in Attacks

CISA has issued an urgent warning regarding a critical vulnerability in PaperCut NG/MF print management software that threat actors are actively exploiting in ransomware campaigns. The vulnerability, ... Read more

Published Date: Jul 29, 2025 (3 weeks, 5 days ago)
  • The Hacker News
CISA Adds PaperCut NG/MF CSRF Vulnerability to KEV Catalog Amid Active Exploitation

Jul 29, 2025Ravie LakshmananVulnerability / Software Security The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a high-severity security vulnerability impacting PaperC ... Read more

Published Date: Jul 29, 2025 (3 weeks, 6 days ago)
  • TheCyberThrone
CISA adds CISCO ISE and PaperCut MF flaws to KEV Catalog

Skip to content July 29, 2025The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added three significant vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog on July 2 ... Read more

Published Date: Jul 29, 2025 (3 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-2533 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Jul. 29, 2025

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:a:papercut:papercut_mf:22.0.10:*:*:*:*:*:*:* *cpe:2.3:a:papercut:papercut_ng:22.0.10:*:*:*:*:*:*:* OR *cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:* versions up to (excluding) 20.1.8 *cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.2.12 *cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:* versions from (including) 22.0.0 up to (excluding) 22.1.1 *cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:* versions up to (excluding) 20.1.8 *cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:* versions from (including) 21.0.0 up to (excluding) 21.2.12 *cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:* versions from (including) 22.0.0 up to (including) 22.1.1
    Added Reference Type Fluid Attacks: https://www.papercut.com/kb/Main/SecurityBulletinJune2023 Types: Vendor Advisory
    Added Reference Type CVE: https://www.papercut.com/kb/Main/SecurityBulletinJune2023 Types: Vendor Advisory
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Jul. 29, 2025

    Action Type Old Value New Value
    Added Date Added 2025-07-28
    Added Due Date 2025-08-18
    Added Required Action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
    Added Vulnerability Name PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference https://fluidattacks.com/advisories/arcangel/
    Added Reference https://www.papercut.com/kb/Main/SecurityBulletinJune2023
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Jul. 06, 2023

    Action Type Old Value New Value
    Removed Reference https://www.papercut.com/ [Product]
    Added Reference https://www.papercut.com/kb/Main/SecurityBulletinJune2023 [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 03, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://fluidattacks.com/advisories/arcangel/ No Types Assigned https://fluidattacks.com/advisories/arcangel/ Exploit, Third Party Advisory
    Changed Reference Type https://www.papercut.com/ No Types Assigned https://www.papercut.com/ Product
    Added CWE NIST CWE-352
    Added CPE Configuration OR *cpe:2.3:a:papercut:papercut_mf:22.0.10:*:*:*:*:*:*:* *cpe:2.3:a:papercut:papercut_ng:22.0.10:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

57.77 }} 10.64%

score

0.98076

percentile