CVE-2026-84829highCWE-79

CVE-2026-84829: high-severity vulnerability in Optimole

Optimole < 4.2.12 - Unauthenticated Stored XSS via Srcset Descriptor Parameter

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41Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 8.8epss 0.5%
The Optimole WordPress plugin before 4.2.12 does not properly escape a user supplied value before using it to build an image tag attribute, allowing unauthenticated users to inject arbitrary attributes into pages served to every visitor, which leads to Stored Cross-Site Scripting.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Unknown · Optimole
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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