CVE-2026-89193: CWE-79 Cross-Site Scripting (XSS) in Robin Image Optimizer
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.
AI Analysis
Technical Summary
CVE-2026-89193 is a stored Cross-Site Scripting (CWE-79) vulnerability in the Robin Image Optimizer WordPress plugin prior to version 2.0.8. The vulnerability arises from improper escaping of values by the plugin's bundled HTML parser when a non-default image delivery mode is enabled. This allows unauthenticated attackers to inject malicious scripts that execute in the context of any user viewing the affected page, potentially leading to session hijacking, privilege escalation, or other script-based attacks.
Potential Impact
Unauthenticated attackers can inject and store malicious scripts that execute in the browsers of any users who visit affected pages, including administrators. This can lead to unauthorized actions performed with the privileges of the victim user, potentially compromising site integrity and user data.
Mitigation Recommendations
Upgrade the Robin Image Optimizer plugin to version 2.0.8 or later, where this vulnerability is fixed. No other mitigation steps are indicated by the vendor advisory.
CVE-2026-89193: CWE-79 Cross-Site Scripting (XSS) in Robin Image Optimizer
Description
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.
Affected software
Robin Image Optimizer
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-89193 is a stored Cross-Site Scripting (CWE-79) vulnerability in the Robin Image Optimizer WordPress plugin prior to version 2.0.8. The vulnerability arises from improper escaping of values by the plugin's bundled HTML parser when a non-default image delivery mode is enabled. This allows unauthenticated attackers to inject malicious scripts that execute in the context of any user viewing the affected page, potentially leading to session hijacking, privilege escalation, or other script-based attacks.
Potential Impact
Unauthenticated attackers can inject and store malicious scripts that execute in the browsers of any users who visit affected pages, including administrators. This can lead to unauthorized actions performed with the privileges of the victim user, potentially compromising site integrity and user data.
Mitigation Recommendations
Upgrade the Robin Image Optimizer plugin to version 2.0.8 or later, where this vulnerability is fixed. No other mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-09-11T07:19:40.657Z
- State
- PUBLISHED
Threat ID: 6abcab01236a9c741f0494b8
Added to database: 09/30/2026, 06:24:01 UTC
Last enriched: 09/30/2026, 06:39:04 UTC
Last updated: 09/30/2026, 07:25:33 UTC
Views: 4
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