CVE-2026-81154: CWE-79 Cross-Site Scripting (XSS) in Robo Gallery
Description
The Robo Gallery WordPress plugin before 5.2.6 does not sanitise and escape image alt text before outputting it in one of its gallery layouts, allowing users with the Author role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any user viewing the affected gallery, including administrators.
CVSS v3.1
Score 6.8medium
Affected software
Robo Gallery
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-81154 is a Stored Cross-Site Scripting vulnerability in the Robo Gallery WordPress plugin prior to version 5.2.6. The vulnerability occurs due to improper sanitization and escaping of image alt text before output in a gallery layout. Users with Author role or above can exploit this to inject malicious scripts that execute in the context of other users viewing the gallery, potentially leading to session hijacking or other script-based attacks.
Potential Impact
An attacker with Author or higher privileges can inject persistent malicious scripts via image alt text. These scripts execute in the browsers of any users who view the affected gallery, including administrators. This can lead to unauthorized actions performed on behalf of the victim, theft of cookies or credentials, or other client-side attacks.
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. No other vendor advisory or patch information is provided, so users should verify they are running 5.2.6 or newer.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- WPScan
- Date Reserved
- 2026-08-26T16:18:08.112Z
- State
- PUBLISHED
Threat ID: 6acb2ddf2cdf04f656b78cef
Added to database: 10/11/2026, 06:34:07 UTC
Last enriched: 10/11/2026, 07:04:21 UTC
Last updated: 10/11/2026, 21:33:40 UTC
Views: 16
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