What is CVE-2021-24667?

CVE-2021-24667 is a medium-severity vulnerability in Simplygallery Simply Gallery Blocks With Lightbox, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-30.

How severe is CVE-2021-24667?

Medium severity. CVSS v3 base score is 5.4 out of 10.

Is CVE-2021-24667 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Simplygallery Simply Gallery Blocks With Lightbox

CVE-2021-24667

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.

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.006 (46.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

Affected products

Simplygallery Simply_gallery_blocks_with_lightbox
Unknown Gallery Blocks With Lightbox. Image Gallery, (Html5 Video , Youtube, Vimeo) And Lightbox For Native — versions 2.2.1

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

contact@wpscan.com (Third Party Advisory, x_refsource_MISC)
contact@wpscan.com (Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-24667?: CVE-2021-24667 is a medium-severity vulnerability in Simplygallery Simply Gallery Blocks With Lightbox, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2021-08-30.
How severe is CVE-2021-24667?: Medium severity. CVSS v3 base score is 5.4 out of 10.
Is CVE-2021-24667 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.