Gallery Blocks with Lightbox < 2.2.1- Authenticated Stored Cross-Site Scripting

2021-08-2300:00:00

Vishnupriya Ilango

0.001 Low

EPSS

Percentile

19.6%

JSON

A stored cross-site scripting vulnerability has been discovered in : Simply Gallery Blocks with Lightbox (Version – 2.2.0 & below) . The vulnerability exists in the Lightbox functionality where a user with low privileges is allowed to execute arbitrary script code within the context of the application. This vulnerability is due to insufficient validation of image parameters in meta data.

Create/edit a Gallery, add a media to it with a payload such as "><script>alert(/XSS/)</script> in the media Title field

References

www.fortiguard.com/zeroday/FG-VD-21-060

0.001 Low

EPSS

Percentile

19.6%

JSON

Related for WPEX-ID:5925B263-6D6F-4A03-A98A-620150DFF8F7