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CVE-2025-4577

18
FAUCET Score

CVE-2025-4577 describes a Stored Cross-Site Scripting (XSS) vulnerability in the Smash Balloon Social Post Feed plugin for WordPress, affecting all versions up to 4.3.1. This flaw allows authenticated attackers with Contributor-level access or higher to inject malicious web scripts via the data-color attribute due to insufficient input sanitization. The vulnerability has a CVSS score of 5.4 (Medium), indicating a network-based attack with low complexity, requiring user interaction, and potentially leading to limited impact on confidentiality and integrity. Currently, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 4.3.2CPE matchmatch criteria
cpe:2.3:a:wpbeginner:smash_balloon_social_post_feed:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.4MEDIUM

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

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

Exploit Intelligence

EPSS Score
0.27%
Probability of exploitation in next 30 days
EPSS Percentile
19.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0027 is in the 26th 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

plugins.trac.wordpress.org / browser/custom-facebook-feed/tags/4.3.0/assets/js/cff-scripts.js
Product
plugins.trac.wordpress.org / browser/custom-facebook-feed/tags/4.3.0/assets/js/cff-scripts.js
Product
wordfence.com / threat-intel/vulnerabilities/id/ec3de7e2-4a29-401f-af2c-0ce78d768eae
Third Party Advisory