CVE-2020-17449

Name: CVE-2020-17449
Creator: NVD / NIST
Published: 2020-08-12T22:15:12.657+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.55%

Last modified Jun 17, 2026

CVE-2020-17449 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. PHP-Fusion 9.03 allows XSS via the error_log file.. EPSS estimates a 0.55% chance of exploitation in the next 30 days.

Description

PHP-Fusion 9.03 allows XSS via the error_log file.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.55%

41.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Php-Fusion	Php-Fusion	>= 9.0, <= 9.03

References

https://sec-consult.com/en/blog/advisories/multiple-cross-site-scripting-xss-vulnerabilities-in-php-fusion-cms/Exploit, Third Party Advisory
https://sec-consult.com/en/blog/advisories/multiple-cross-site-scripting-xss-vulnerabilities-in-php-fusion-cms/Exploit, Third Party Advisory

Timeline

Published: Aug 12, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-17449?

PHP-Fusion 9.03 allows XSS via the error_log file.

How severe is CVE-2020-17449?

CVE-2020-17449 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.55% probability of exploitation in the next 30 days.

How do I fix CVE-2020-17449?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-17449?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST