CVE-2026-89193CWE-79cross-site-scripting

CVE-2026-89193

High · published September 30, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
11.5
In the wild
Unconfirmed
What it is

The Robin Image Optimizer WordPress plugin before 2.0.8 does not escape values that its bundled HTML parser re-emits into element attributes when a non-default image delivery mode is enabled, allowing unauthenticated users to submit content that is stored and later executed as Cross-Site Scripting in the browser of any user viewing an affected page, including administrators.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00216 · 11.5th percentile
Weakness
CWE-79 · Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Published
2026-09-30T10:17Z
References (1)
https://wpscan.com/vulnerability/3c90d1c5-fd45-4a82-9357-504d7a0e5adc/ · [email protected]
EPSS history
Timeline
  • 01 OCT 03:49Z
    EPSS moved — → 0%
    epss
  • 30 SEP 06:00Z
    Robin Image Optimizer 2.0.0 - 2.0.7 - Unauthenticated Stored XSS via WebP URL Delivery HTML Parser
    cvelistv5