CVE-2026-74932
WP Fastest Cache 0.9.0.3 - 1.5.0 - Unauthenticated Stored XSS via Host Header Cache Poisoning
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.
INFO
Published Date :
Aug. 25, 2026, 8:17 p.m.
Last Modified :
Aug. 26, 2026, 4:30 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 3.1 | HIGH | MITRE-CVE | ||||
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update WP Fastest Cache plugin to version 1.5.1.
- Verify Host header validation and cache key integrity.
- Implement input validation for Host header.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-74932.
| URL | Resource |
|---|---|
| https://wpscan.com/vulnerability/f1eebb4a-cfd1-419e-852d-e5a949437afb/ |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-74932 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-74932
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-74932 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-74932 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Aug. 26, 2026
Action Type Old Value New Value Added Reference https://wpscan.com/vulnerability/f1eebb4a-cfd1-419e-852d-e5a949437afb/ Removed Reference https://wpscan.com/vulnerability/f1eebb4a-cfd1-419e-852d-e5a949437afb/ -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Aug. 26, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Added CWE CWE-79 Added SSVC {'id': 'CVE-2026-74932', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-08-26T14:37:07.928986Z'} -
New CVE Received by [email protected]
Aug. 25, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'Unknown', 'product': 'WP Fastest Cache', 'versions': [{'status': 'affected', 'version': '0.9.0.3', 'lessThan': '1.5.1', 'versionType': 'custom'}], 'collectionURL': 'https://wordpress.org/plugins', 'defaultStatus': 'unaffected'}] Added 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. Added CVSS V3.1 AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H Added Reference https://wpscan.com/vulnerability/f1eebb4a-cfd1-419e-852d-e5a949437afb/