XSS in Mp3 Audio Player

CVE-2026-111967

The MP3 Audio Player WordPress plugin before 5.16 does not escape one of its audio player shortcode attributes before outputting it into an HTML attribute, allowing users with Contributor-level access and above to inject arbitrary JavaScript that executes when another user, such as an administrator previewing a pending post, views the content.

Vulnerability class: XSS (Cross-Site Scripting)

Published · last modified .

CVSS v3 metric

CVSS v3 base score 6.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.002 (6.5th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

  • Mp3 Audio Player

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-111967?
CVE-2026-111967 is a medium-severity vulnerability in Mp3 Audio Player, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2026-10-28.
How severe is CVE-2026-111967?
Medium severity. CVSS v3 base score is 6.8 out of 10.