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CVE-2023-39469

51
FAUCET Score

CVE-2023-39469 is a remote code execution vulnerability affecting PaperCut NG and MF, specifically within the External User Lookup functionality. It allows authenticated attackers to execute arbitrary code with SYSTEM privileges due to improper validation of user-supplied input used in Java code execution. Rated with a CVSS score of 7.2 (HIGH), this vulnerability has a high impact on confidentiality, integrity, and availability, but requires high privileges for exploitation. Currently, there is no public exploit intelligence, active exploitation, or significant community discussion reported.

Impacted Technologies

VendorProductVersion(s)CPE
< 22.1.1CPE matchmatch criteria
cpe:2.3:a:papercut:papercut_mf:*:*:*:*:*:*:*:*
< 22.1.1CPE matchmatch criteria
cpe:2.3:a:papercut:papercut_ng:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.2HIGH

CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
58.09%
Probability of exploitation in next 30 days
EPSS Percentile
99.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.5809 is in the 99th percentile among its peer group of 5,538 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.3 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

Remediation

Remediation records are not available for this CVE.

References

papercut.com / kb/Main/SecurityBulletinJuly2023
Vendor AdvisoryRelated
zerodayinitiative.com / advisories/ZDI-23-1285
Third Party Advisory