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Vulnerability record · CVE-2026-74932 · published 25 August 2026

CVE-2026-74932: Cross-site scripting vulnerability

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.

7.5 CVSS 3.1 High EPSS 0.37% · top 71.3% CWE-79 · Cross-site scripting Deferred
7.5CVSS 3.1 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
26 Aug 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

References

LinkTags
https://wpscan.com/vulnerability/f1eebb4a-cfd1-419e-852d-e5a949437afb/

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Source: NIST National Vulnerability Database (record CVE-2026-74932), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.