# CVE-2026-1557: WP Responsive Images <= 1.0 - Unauthenticated Path Traversal to Arbitrary File Read via src

- Exploited (CISA KEV): no
- Published: 2026-02-26
- CVSS: 7.5 HIGH (v3.1)
- EPSS: 1.9% (79th percentile)
- CWE: CWE-22

The WP Responsive Images plugin for WordPress is vulnerable to Path Traversal in all versions up to, and including, 1.0 via the 'src' parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information.

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

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | Rule published | 2026-09-16 | 202 |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

### F5

- 2026-09-16 · new · rule 200007110
  > Added: signature 200007110 "Responsive Images WordPress Plugin Path Traversal" (Path Traversal, risk High), systems: WordPress. References: CVE-2026-1557.
  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: blocked (1 of 1 requests blocked), template CVE-2026-1557, 2026-11-02
- OWASP Core Rule Set 4.25.0, paranoia level 2, anomaly threshold 5, default CRS settings: blocked (1 of 1 requests blocked), template CVE-2026-1557, 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-2026-1557 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2026-1557