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CVE-2021-24667

20
FAUCET Score

CVE-2021-24667 is a stored cross-site scripting (XSS) vulnerability affecting Simply Gallery Blocks with Lightbox versions 2.2.0 and below. This flaw allows low-privileged users to inject and execute arbitrary script code within the application's Lightbox functionality due to insufficient validation of image metadata. Rated Medium severity (CVSS 5.4), it requires user interaction and could lead to limited impact on confidentiality and integrity. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.2.1CPE matchmatch criteria
cpe:2.3:a:simplygallery:simply_gallery_blocks_with_lightbox:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

5.4MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.3
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.62%
Probability of exploitation in next 30 days
EPSS Percentile
46.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0062 is in the 76th percentile among its peer group of 15,225 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

wpscan.com / vulnerability/5925b263-6d6f-4a03-a98a-620150dff8f7
Third Party Advisory
fortiguard.com / zeroday/FG-VD-21-060
Third Party Advisory