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How it worksPricing
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WordPress Plugin Vulnerabilities

Slideshow Gallery < 1.7.4 - Admin+ Stored Cross-Site Scripting

Description

The plugin does not sanitise and escape the Slide "Title", "Description", and Gallery "Title" fields, which could allow high privilege users to perform Cross-Site Scripting attacks even when the unfiltered_html is disallowed

Proof of Concept

Create/edit a Slide (/wp-admin/admin.php?page=slideshow-slides) and put the following payload in the Title or Description fields: <script>alert(/XSS/)</script>

Create/edit a Gallery (/wp-admin/admin.php?page=slideshow-galleries) and put the following payload in the Title field: <script>alert(/XSS/)</script>

The XSS will be triggered in both backend (Title field, in the Slide/Gallery list pages) and frontend (in pages/posts where the Slide/Gallery is embed) 

Affects Plugins

slideshow-gallery
Fixed in version 1.7.4

References

CVE
CVE-2021-24882

Classification

Type

XSS

OWASP top 10
A7: Cross-Site Scripting (XSS)
CWE
CWE-79

Miscellaneous

Original Researcher

Tyler Miller

Submitter

Tyler Miller

Verified

Yes

WPVDB ID
6d71816c-8267-4b84-9087-191fbb976e72

Timeline

Publicly Published

2021-10-25 (about 8 months ago)

Added

2021-10-25 (about 8 months ago)

Last Updated

2022-04-10 (about 2 months ago)

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