8.8

CVE-2026-83526: foliovision fv player 8

CVSS: 8.8v3.1HighDeferred
Published 10-10-2026Last modified 11-10-2026
Open JSON

Vulnerability summary

CVE-2026-83526 is a high (CVSS 8.8) vulnerability in foliovision fv player 8. EPSS estimates a 0.64% chance of exploitation in the next 30 days, higher than 50.2% of scored vulnerabilities. Fixed in 8.1.8.

Overall risk
35/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.64%
0%100%
Low · Change unavailable
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 10-10-2026
    PublishedVulnerability first disclosed.
  2. 11-10-2026
    Last modifiedVulnerability information updated.

Description

The FV Player 8 plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 8.1.7 via the check_mimetype function. This is due to insufficient file type validation in check_mimetype(), which writes attacker-supplied remote file content to the public uploads directory before any MIME or extension check, combined with a missing capability check on new player creation. This makes it possible for authenticated attackers, with subscriber-level access and above, to upload files that may be executable, which makes remote code execution possible. This requires successfully exploiting a race condition.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.64%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

Change unavailable

Change unavailable

10-10-202621-10-2026
EPSS score
0.64%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Foliovision1 product
Wordpress1 product
  • fv-player≤ 8.1.7 (fixed in 8.1.8)

2 vendors · 2 products

References

12 links
Show all 12 references