CVE-2026-74932CWE-79cross-site-scripting

CVE-2026-74932

High · published August 26, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
30.1
In the wild
Unconfirmed
What it is

The WP Fastest Cache WordPress plugin before 1.5.1 does not validate the Host header before using it to build the URLs of the asset files it embeds in the pages it caches, and does not include that header in the cache key, allowing unauthenticated attackers to poison cached pages with references to a server they control and have arbitrary JavaScript run for every subsequent visitor.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00373 · 30.1th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-08-26T00:17Z
References (1)
https://wpscan.com/vulnerability/f1eebb4a-cfd1-419e-852d-e5a949437afb/ · [email protected]
EPSS history
Timeline
  • 27 AUG 06:45Z
    EPSS moved — → 0%
    epss
  • 25 AUG 20:05Z
    WP Fastest Cache 0.9.0.3 - 1.5.0 - Unauthenticated Stored XSS via Host Header Cache Poisoning
    cvelistv5