CVE-2026-81578
An improper access control vulnerability exists in the web management interface of PaperCut MF and PaperCut NG. Under specific conditions, unauthenticated remote requests targeting administrative functions can trigger backend actions prior to the completion of access validation checks. This allows an unauthenticated remote attacker to modify certain system configurations.
Scoring
- Severity
- HIGH
- CVSS base score
- 8.8
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
- EPSS probability
- 1.62%
- CISA KEV
- Known exploited vulnerability
- CWE
- CWE-305
- Published
- 2026-08-28
- Last modified
- 2026-09-01
Affected products
- PaperCut PaperCut MF/NG
Weakness type
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