What is CVE-2020-23702?

CVE-2020-23702 is a medium-severity vulnerability in Php-Fusion, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-07-07.

How severe is CVE-2020-23702?

Medium severity. CVSS v3 base score is 4.8 out of 10.

XSS in Php-Fusion

CVE-2020-23702

Cross Site Scripting (XSS) vulnerability in PHP-Fusion 9.03.60 via 'New Shout' in /infusions/shoutbox_panel/shoutbox_admin.php.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2021-07-07 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (46.7th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 46.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Php-Fusion — versions 9.03.60

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

user-images.githubusercontent.com/62001260/82175522-47169980-98fe-11ea-9a8e-936… (Exploit, Third Party Advisory)
github.com/phpfusion/PHPFusion/issues/2328 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-23702?: CVE-2020-23702 is a medium-severity vulnerability in Php-Fusion, classified under Cross-site Scripting. CVSS score: 4.8/10. Published 2021-07-07.
How severe is CVE-2020-23702?: Medium severity. CVSS v3 base score is 4.8 out of 10.