CVE-2026-88826CWE-79cross-site-scripting

CVE-2026-88826

High · published October 11, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
4.0
In the wild
Unconfirmed
What it is

The SmugMug Embed WordPress plugin through 3.13 does not have authorisation or CSRF checks on an AJAX action that stores gallery data, and does not sanitise or escape that data before outputting it, allowing unauthenticated users to store arbitrary web scripts that execute when an administrator views the SmugMug Embed WordPress plugin through 3.13's settings screen.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00152 · 4.0th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-10-11T11:17Z
References (1)
https://wpscan.com/vulnerability/6e8925b5-85a1-48e3-b744-df1c6fa24ed4/ · [email protected]
EPSS history
Timeline
  • 12 OCT 03:31Z
    EPSS moved — → 0%
    epss
  • 11 OCT 06:00Z
    SmugMug Embed <= 3.13 - Unauthenticated Stored XSS via saveSelectedAlbums
    cvelistv5
  • 11 OCT 06:00Z
    SmugMug Embed <= 3.13 - Unauthenticated Stored XSS via saveSelectedAlbums
    cvelistv5