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CVE-2021-4419

15
FAUCET Score

CVE-2021-4419 affects the WP-Backgrounds Lite plugin for WordPress, specifically versions up to and including 2.3. It is a Cross-Site Request Forgery (CSRF) vulnerability stemming from inadequate nonce validation in the ino_save_data() function. This allows unauthenticated attackers to save metadata by tricking a site administrator into clicking a malicious link. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and resulting in low integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.3CPE matchmatch criteria
cpe:2.3:a:inoplugs:wp-backgrounds-lite:*:*:*:*:*:wordpress:*:*
>= 0, <= 2.3CPE match
cpe:2.3:a:inoplugs:wp-backgrounds_lite:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

4.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
32.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 33rd percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

blog.nintechnet.com / 25-wordpress-plugins-vulnerable-to-csrf-attacks
Third Party Advisory
blog.nintechnet.com / more-wordpress-plugins-and-themes-vulnerable-to-csrf-attacks
Third Party Advisory
blog.nintechnet.com / multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-1
Third Party Advisory
blog.nintechnet.com / multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-2
Third Party Advisory
blog.nintechnet.com / multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-3
Third Party Advisory
blog.nintechnet.com / multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-4
Third Party Advisory
blog.nintechnet.com / multiple-wordpress-plugins-fixed-csrf-vulnerabilities-part-5
Third Party Advisory
plugins.trac.wordpress.org / browser/wp-backgrounds-lite/trunk/inoplugs_background_plugin.php
Patch
wordfence.com / threat-intel/vulnerabilities/id/d7a05894-8f9d-442f-961c-2e80aa25c3db
Third Party Advisory