PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability. Actively exploited: CISA added this vulnerability to its Known Exploited Vulnerabilities catalog on 28/07/2025. Patch affected systems as an emergency.
| Package | Affected versions | Patched versions |
|---|---|---|
| papercut mf | ≥ 21.0.0, < 21.2.12≥ 22.0.0, < 22.1.1< 20.1.8 | 21.2.1222.1.120.1.8 |
| papercut ng | ≥ 21.0.0, < 21.2.12≥ 22.0.0, ≤ 22.1.1< 20.1.8 | 21.2.1220.1.8 |
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.
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