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CVE-2021-24334

19
FAUCET Score

CVE-2021-24334 is a Stored Cross-Site Scripting (XSS) vulnerability affecting the Instant Images – One Click Unsplash Uploads WordPress plugin prior to version 4.4.0.1. The flaw stems from insufficient server-side validation of the unsplash_download_w and unsplash_download_h parameters, allowing malicious scripts to be injected and stored. Rated as MEDIUM severity with a CVSS score of 5.4, this vulnerability requires low privileges and user interaction (UI:R) for exploitation, potentially leading to client-side information disclosure and integrity compromise. The attack vector is network-based (AV:N) with low attack complexity (AC:L). Currently, there is no evidence of active exploitation, and no public exploit code is available in Metasploit, Nuclei, or ExploitDB. The CVE has received minimal community discussion and media coverage, indicating a low level of public awareness or concern.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.4.0.1CPE matchmatch criteria
cpe:2.3:a:connekthq:instant_images_-_one_click_unsplash_uploads:*:*:*:*:*: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
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
47.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 80th percentile among its peer group of 15,224 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

m0ze.ru / vulnerability/%5B2021-04-22%5D-%5BWordPress%5D-%5BCWE-79%5D-Instant-Images-WordPress-Plugin-v4.4.0.txt
wpscan.com / vulnerability/ae79189a-6b63-4110-9567-cd7c97d71e4f
ExploitThird Party Advisory