What is CVE-2017-15809?

CVE-2017-15809 is a medium-severity vulnerability in Phpmyfaq, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-10-23.

How severe is CVE-2017-15809?

Medium severity. CVSS v3 base score is 6.1 out of 10.

XSS in Phpmyfaq

CVE-2017-15809

In phpMyFaq before 2.9.9, there is XSS in admin/tags.main.php via a crafted tag.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-10-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (49.0th percentile), scored 2026-10-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 49th percentile — 49.0% 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

Phpmyfaq

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

github.com/thorsten/phpMyFAQ/commit/cb648f0d5690b81647dd5c9efe942ebf6cce7da9 (Patch, Third Party Advisory, Issue Tracking)

Frequently asked questions

What is CVE-2017-15809?: CVE-2017-15809 is a medium-severity vulnerability in Phpmyfaq, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-10-23.
How severe is CVE-2017-15809?: Medium severity. CVSS v3 base score is 6.1 out of 10.