CVE-2023-2533 PaperCut NG/MF Cross-Site Request Forgery (CSRF)

What is CVE-2023-2533?

CVE-2023-2533 is a high-severity vulnerability in PaperCut NG/MF, published on 20 Jun 2023. An attacker needs administrator access to exploit it, and only if a user opens a file or follows a link.

Official 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.

Weakness: CWE-352

Which versions are affected by CVE-2023-2533?

It affects 2 products.

Products include Papercut Papercut Mf, Papercut Papercut Ng.

How do I fix CVE-2023-2533?

No fix has been published for CVE-2023-2533 yet. Limit exposure of the affected software until one is available. US federal agencies must fix it by 18 Aug 2025.

Is CVE-2023-2533 being exploited?

Yes. Attackers have exploited CVE-2023-2533 in the wild since at least 28 Jul 2025.

Other vulnerabilities in PaperCut NG/MF

• CVE-2023-27350 PaperCut MF/NG Improper Access Control Exploited Critical 9.8
• CVE-2026-82078 PaperCut NG/MF Unsafe Reflection Exploited Critical 9.4
• CVE-2026-81578 PaperCut NG/MF Missing Authentication for Critical Function Exploited High 8.8
• CVE-2023-27351 PaperCut NG/MF Improper Authentication Exploited High 8.2
• CVE-2023-39143 Path traversal in n/a Critical 9.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-fhf9-47gc-m9wc.