# CVE-2024-0881: Combo Blocks < 2.2.76 - Unauthenticated Password Protected Posts Access

- Exploited (CISA KEV): no
- Published: 2024-04-11
- CVSS: 5.4 MEDIUM (v3.1)
- EPSS: 16.9% (97th percentile)

The Post Grid, Form Maker, Popup Maker, WooCommerce Blocks, Post Blocks, Post Carousel  WordPress plugin before 2.2.76 does not have proper authorization, resulting in password protected posts to be displayed in the result of some unauthenticated AJAX actions, allowing unauthenticated users to read such posts

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | Before feed history | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | Before feed history | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2024-09-17 | 159 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2024-09-17 · new · rule 200009316
  > Added: signature 200009316 "WordPress Combo Blocks Authentication Bypass" (Information Leakage, risk Medium), systems: PHP, WordPress. References: CVE-2024-0881.
  Source: https://docs.cloud.f5.com/docs-v2/platform/changelogs/security-details-changelog

## Our test (measured)

- OWASP Core Rule Set 4.25.0, paranoia level 1, anomaly threshold 5, default CRS settings: passed (0 of 3 requests blocked), template CVE-2024-0881, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: passed (0 of 3 requests blocked), template CVE-2024-0881, 2026-11-02

"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-2024-0881 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2024-0881