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CVE-2023-51399

15
FAUCET Score

CVE-2023-51399 is a Stored Cross-site Scripting (XSS) vulnerability affecting WPFactory Back Button Widget versions up to and including 1.6.3. This medium-severity vulnerability (CVSS 5.4) allows an authenticated attacker to inject malicious scripts into web pages, potentially leading to information disclosure or defacement. While the attack complexity is low, user interaction is required for exploitation, and the impact is limited to confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6.3CPE match
cpe:2.3:a:wpfactory:back_button_widget:*:*:*:*:*:wordpress:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.3
Impact Score
3.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 36th percentile among its peer group of 15,224 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

patchstack.com / database/vulnerability/back-button-widget/wordpress-back-button-widget-plugin-1-6-3-cross-site-scripting-xss-vulnerability
Third Party Advisory