What is CVE-2026-110001?

CVE-2026-110001 is a medium-severity vulnerability in Foliovision Fv Flowplayer Video Player, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-30.

How severe is CVE-2026-110001?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Foliovision Fv Flowplayer Video Player

CVE-2026-110001

The FV Flowplayer Video Player plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'comment (shortcode attribute 'align')' parameter in all versions up to, and including, 7.5.55.7212 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page. This requires the plugin's 'Parse Vimeo and YouTube links' (parse_comments) setting to be enabled by an administrator, which causes the plugin to register do_shortcode on the comment_text filter, allowing attacker-supplied shortcode attributes stored in comments to be rendered unescaped to all subsequent visitors.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2026-10-30 · last modified 2026-10-30.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Foliovision Fv Flowplayer Video Player

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2026-110001?: CVE-2026-110001 is a medium-severity vulnerability in Foliovision Fv Flowplayer Video Player, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2026-10-30.
How severe is CVE-2026-110001?: Medium severity. CVSS v3 base score is 5.4 out of 10.