What is CVE-2023-1938?

CVE-2023-1938 is a high-severity vulnerability in Wpfastestcache Wp Fastest Cache, classified under CWE-918 SERVER-SIDE REQUEST FORGERY (SSRF). CVSS score: 8.8/10. Published 2023-05-30.

How severe is CVE-2023-1938?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2023-1938 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Wpfastestcache Wp Fastest Cache

CVE-2023-1938

The WP Fastest Cache WordPress plugin before 1.1.5 does not have CSRF check in an AJAX action, and does not validate user input before using it in the wp_remote_get() function, leading to a Blind SSRF issue

Published 2023-05-30 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.085 (94.8th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 95th percentile — 94.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.085 · newest: 0.085 · change: 0.000

Affected products

Wpfastestcache Wp Fastest Cache
Wp Fastest Cache — versions 0

Public proof-of-concept exploits

References

wpscan.com/vulnerability/92b1c6d8-51db-46aa-bde6-abdfb091aab5 (Exploit, technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2023-1938?: CVE-2023-1938 is a high-severity vulnerability in Wpfastestcache Wp Fastest Cache, classified under CWE-918 SERVER-SIDE REQUEST FORGERY (SSRF). CVSS score: 8.8/10. Published 2023-05-30.
How severe is CVE-2023-1938?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2023-1938 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.