# CVE-2023-2533: PaperCut NG/MF Cross-Site Request Forgery (CSRF) Vulnerability

- Exploited (CISA KEV): yes, added 2025-07-28
- Published: 2023-06-20
- CVSS: 8.4 HIGH (v3.1)
- EPSS: 28.8% (98th percentile)
- CWE: CWE-352

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.

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Blocks by default | 2025-08-11 | 783 |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### Cloudflare

- 2025-08-11 · new · rule 71b8e7b646f94d79873213cd99105c43 · default Block
  > PaperCut NG/MF - Remote Code Execution - CVE:CVE-2023-2533. Previous action: Log. New action: Block. This is a New Detection
  Source: https://developers.cloudflare.com/changelog/post/2025-08-11-waf-release/

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2023-2533 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2023-2533