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CVE-2023-2533 is a cross-site request forgery vulnerability in PaperCut NG and PaperCut MF versions 21.2.0 through 22.0.12. A maliciously crafted link can cause a currently authenticated PaperCut administrator’s browser to issue unauthorized requests to the PaperCut application. Under specific conditions, those requests can alter security settings or lead to arbitrary code execution. The affected components are PaperCut core application and site servers; Direct Print Monitors, Mobility Print, Hive, Pocket, and MFD Embedded software are not affected.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
31 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A PaperCut remote-code-execution vulnerability identified by CISA as actively exploited in attacks.
A remote-code-execution vulnerability affecting PaperCut software that CISA identified as actively exploited in July 2025.
PaperCut NG/MF CSRF vulnerability added to CISA KEV due to active exploitation.
Cross-site request forgery (CSRF) vulnerability in PaperCut NG/MF that can trick an authenticated admin into performing unintended actions (e.g., configuration changes and potentially command execution).
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.