How severe is CVE-2023-2533?

CVE-2023-2533 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-2533 being actively exploited?

Yes. CVE-2023-2533 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-07-28, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2023-2533?

CVE-2023-2533 primarily affects Papercut Papercut Mf. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-2533?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2023-2533 have an EU (EUVD) identifier?

Yes. CVE-2023-2533 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-34012. It is also flagged as exploited in the EUVD (since 2025-07-28).

When was CVE-2023-2533 published?

CVE-2023-2533 was published on 2023-06-20 and last updated on 2026-06-17.

CVE-2023-2533

CVE-2023-2533 is a high-severity vulnerability in Papercut Papercut Mf with a CVSS 3.x base score of 8.4. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2025-07-28). The underlying weakness is classified as CWE-352.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 29% (98th percentile)
Actively exploited: Yes — listed in CISA KEV (added 2025-07-28)
EU (EUVD) id: EUVD-2023-34012
EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2025-07-28)
Weakness: CWE-352
Affected product: Papercut Papercut Mf
Published: 2023-06-20
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2023-2533?: 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.
How severe is CVE-2023-2533?: CVE-2023-2533 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-2533 being actively exploited?: Yes. CVE-2023-2533 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2025-07-28, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2023-2533?: CVE-2023-2533 primarily affects Papercut Papercut Mf. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-2533?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2023-2533 have an EU (EUVD) identifier?: Yes. CVE-2023-2533 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-34012. It is also flagged as exploited in the EUVD (since 2025-07-28).
When was CVE-2023-2533 published?: CVE-2023-2533 was published on 2023-06-20 and last updated on 2026-06-17.

References

Affected products (2)

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

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