CVE-2026-81155: CWE-79 Cross-Site Scripting (XSS) in Robo Gallery
Description
The Robo Gallery WordPress plugin before 5.2.6 does not sanitise and escape a gallery setting before outputting it on a frontend page, allowing users with the Author role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor viewing a gallery, including administrators.
CVSS v3.1
Score 6.8medium
Affected software
Robo Gallery
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-81155 is a stored Cross-Site Scripting (CWE-79) vulnerability in the Robo Gallery WordPress plugin prior to version 5.2.6. The vulnerability occurs because a gallery setting is output on frontend pages without proper sanitization or escaping. Users with the Author role or above can exploit this to inject malicious scripts that execute in the context of any visitor's browser who views the affected gallery, potentially leading to session hijacking or other script-based attacks.
Potential Impact
The vulnerability enables users with Author role or higher to perform stored XSS attacks that execute arbitrary JavaScript in the browsers of any visitors to the gallery, including site administrators. This can lead to unauthorized actions performed on behalf of users, theft of sensitive information, or further compromise of the WordPress site.
Mitigation Recommendations
Upgrade the Robo Gallery plugin to version 5.2.6 or later, where this vulnerability is fixed. Since the vulnerability is patched in 5.2.6, applying this official fix fully mitigates the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-26T16:18:16.708Z
- State
- PUBLISHED
Threat ID: 6acb2ddf2cdf04f656b78cf0
Added to database: 10/11/2026, 06:34:07 UTC
Last enriched: 10/11/2026, 07:04:18 UTC
Last updated: 10/11/2026, 21:33:39 UTC
Views: 16
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