What is CVE-2025-3649?

CVE-2025-3649 is a medium-severity vulnerability in Lightpress Lightbox, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2025-05-12.

How severe is CVE-2025-3649?

Medium severity. CVSS v3 base score is 6.8 out of 10.

XSS in Lightpress Lightbox

CVE-2025-3649

The LightPress Lightbox WordPress plugin before 2.3.4 does not check download links point to valid, non-Javascript URLs, allowing users with at least the contributor role to conduct Stored XSS attacks.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2025-05-12 · last modified 2026-06-17.

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: 0.004 (35.5th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Lightpress Lightbox
Lightpress Lightbox — versions 0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

wpscan.com/vulnerability/37fb7f3b-1766-4c2c-9b78-f77f15a04476/ (Exploit, technical-description, Third Party Advisory, exploit, vdb-entry)

Frequently asked questions

What is CVE-2025-3649?: CVE-2025-3649 is a medium-severity vulnerability in Lightpress Lightbox, classified under Cross-site Scripting. CVSS score: 6.8/10. Published 2025-05-12.
How severe is CVE-2025-3649?: Medium severity. CVSS v3 base score is 6.8 out of 10.