CVE-2026-74932

WP Fastest Cache 0.9.0.3 - 1.5.0 - Unauthenticated Stored XSS via Host Header Cache Poisoning

HIGH
7.5
CVSS Score
Published: August 25, 2026 at 08:05 PM UTC
Updated: August 26, 2026 at 04:41 PM UTC
1 product affected across 1 vendorWpfastestcache

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.9.0.3 ≤ v < 1.5.10.9.0.3
Affected range stops below 1.5.1, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

ExploitVDB EntryTechnical Description
Source: cverecord
https://wpscan.com/vulnerability/f1eebb4a-cfd1-419e-852d-e5a949437afb/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHWPScan
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-79

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