What is CVE-2025-4955?

CVE-2025-4955 is a medium-severity vulnerability in Amauri Tarteaucitron.io, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2025-06-18.

How severe is CVE-2025-4955?

Medium severity. CVSS v3 base score is 4.7 out of 10.

XSS in Amauri Tarteaucitron.io

CVE-2025-4955

The tarteaucitron.io WordPress plugin before 1.9.5 uses query parameters from YouTube oEmbed URLs without sanitizing these parameters correctly, which could allow users with the contributor role and above to perform Stored Cross-site Scripting attacks.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-06-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.004 (29.2th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 29.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001

Affected products

Amauri Tarteaucitron.io
Tarteaucitron.io — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

wpscan.com/vulnerability/b84a73a4-7e9b-4994-a9bb-ad47f7cf45da/ (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2025-4955?: CVE-2025-4955 is a medium-severity vulnerability in Amauri Tarteaucitron.io, classified under Cross-site Scripting. CVSS score: 4.7/10. Published 2025-06-18.
How severe is CVE-2025-4955?: Medium severity. CVSS v3 base score is 4.7 out of 10.