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Vulnerability record · CVE-2023-1929 · published 6 April 2023

CVE-2023-1929: Wpfastestcache wp fastest cache missing authorization vulnerability

Wpfastestcache · Wp Fastest Cache

The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the wpfc_purgecache_varnish_callback function in versions up to, and including, 1.1.2. This makes it possible for authenticated attackers with subscriber-level access to purge the varnish cache.

4.3 CVSS 3.1 Medium EPSS 0.39% · top 69.9% CWE-862 · Missing authorization
4.3CVSS 3.1 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

The WP Fastest Cache plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the wpfc_purgecache_varnish_callback function in versions up to, and including, 1.1.2. This makes it possible for authenticated attackers with subscriber-level access to purge the varnish cache.

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

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://plugins.trac.wordpress.org/changeset/2893158/wp-fastest-cache/trunk/wpFastestCache.php?contextall=1 Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/1e567aec-07e5-494a-936d-93b40d3e3043?source=cve Third Party Advisory
https://plugins.trac.wordpress.org/changeset/2893158/wp-fastest-cache/trunk/wpFastestCache.php?contextall=1 Patch
https://www.wordfence.com/threat-intel/vulnerabilities/id/1e567aec-07e5-494a-936d-93b40d3e3043?source=cve Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2023-1929), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.