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CVE-2023-2533

80
FAUCET Score

CVE-2023-2533 is a critical Cross-Site Request Forgery (CSRF) vulnerability affecting PaperCut NG/MF, which could allow an attacker to alter security settings or execute arbitrary code. This high-severity flaw (CVSS 8.8) requires user interaction, specifically an administrator clicking a malicious link, but has a high impact on confidentiality, integrity, and availability. The vulnerability is actively exploited in the wild, as confirmed by its presence in CISA's KEV catalog, and has garnered significant community discussion and media coverage. Despite active exploitation, no public exploit code is currently available on platforms like Metasploit or ExploitDB.

Impacted Technologies

VendorProductVersion(s)CPE
< 20.1.8CPE matchmatch criteria
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
>= 21.0.0, < 21.2.12CPE matchmatch criteria
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
>= 22.0.0, < 22.1.1CPE matchmatch criteria
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
< 20.1.8CPE matchmatch criteria
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*
>= 21.0.0, < 21.2.12CPE matchmatch criteria
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.4HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.7
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
29.25%
Probability of exploitation in next 30 days
EPSS Percentile
98.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Added to KEV · Jul 28, 2025
This CVE's current EPSS score of 0.2925 is in the 98th percentile among its peer group of 14,824 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

cisa.gov / known-exploited-vulnerabilities-catalog
US Government Resource
fluidattacks.com / advisories/arcangel
ExploitThird Party Advisory
papercut.com / kb/Main/SecurityBulletinJune2023
Vendor Advisory