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CVE-2023-2533

8.8, high Known exploited

PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability

NVD (opens in a new tab) CVE.org (opens in a new tab) CISA KEV catalogue (opens in a new tab)
CVSS
8.8, high high CVSS v3.1
EPSS, next 30 days
29% higher than 98.1% of scored CVEs
Exploitation
Confirmed in the wild
Published
20 Jun 20233 years ago

Known exploited

CISA added this to the Known Exploited Vulnerabilities Catalog on 28 Jul 2025. US federal agencies had to remediate by 18 Aug 2025, a deadline that has passed.

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.

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.

Details

Vendor
PaperCut
Product
PaperCut NG/MF
Weakness
CWE-352 (opens in a new tab)
Status
Analyzed
Updated
17 Jun 2026
Assigner
help@fluidattacks.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References 3

Exploit code 1

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other PaperCut CVEs

Every PaperCut CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-81578 PaperCut NG/MF Missing Authentication for Critical Function Vulnerability KEV EPSS 86% 9.8, critical
  • CVE-2026-82078 PaperCut NG/MF Unsafe Reflection Vulnerability KEV EPSS 64% 9.1, critical
  • CVE-2023-27350 PaperCut MF/NG Improper Access Control Vulnerability KEV EPSS 100% 9.8, critical
  • CVE-2023-27351 PaperCut NG/MF Improper Authentication Vulnerability KEV EPSS 78% 7.5, high

Beyond this page

Is CVE-2023-2533 in your network?

This page tells you how dangerous CVE-2023-2533 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

CVE-2023-2533 is in the CISA catalogue of exploited vulnerabilities: attackers are already exploiting it.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2023-2533 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.