CVE-2021-24667
Gallery Blocks with Lightbox < 2.2.1- Authenticated Stored Cross-Site Scripting
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
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.
- Record
CVE-2021-24667- CVSS 3.1
- 5.4 Medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS 2.0
- 3.5 Low
AV:N/AC:M/Au:S/C:N/I:P/A:N - Weakness
- CWE-79
- Updated
- 2026-11-02
CVE List No score
Gallery Blocks with Lightbox < 2.2.1- Authenticated Stored Cross-Site Scripting
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.
- Record
CVE-2021-24667- Weakness
- CWE-79
- Updated
- 2026-11-02
EUVDEUVD-2021-11579 No score
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.
- Record
EUVD-2021-11579- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-7x7j-cf43-24q8 No score
A stored cross-site scripting vulnerability has been discovered in : Simply Gallery Blocks with...
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.
- Record
GHSA-7x7j-cf43-24q8- Weakness
- CWE-79
- Updated
- 2026-11-02
Affected products
- simplygallery simply gallery blocks with lightbox
- gallerycreator gallery blocks with lightbox. image gallery, (html5 video , youtube, vimeo) video gallery and lightbox for native gallery
- unknown gallery blocks with lightbox. image gallery, (html5 video , youtube, vimeo) video gallery and lightbox for native gallery
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2021-24667 is a medium vulnerability (CVSS 5.4) in Simplygallery Simply Gallery Blocks With Lightbox, published August 30, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.62%, the 49th percentile. No source names a fixed version.