CVE-2023-39921

FAUCET Score

CVE-2023-39921 is a Stored Cross-site Scripting (XSS) vulnerability affecting the Molongui Author Box, Guest Author and Co-Authors for Your Posts plugin versions up to 4.6.19. This medium-severity vulnerability (CVSS 4.8) requires high privileges and user interaction to exploit, potentially leading to limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		<= 4.6.19CPE matchmatch criteria	cpe:2.3:a:amitzy:molongui::::::wordpress::*

CVSS Data

CVSS version used by this source: 3.1

5.9MEDIUM

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

HIGH

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality Impact

LOW

Integrity Impact

LOW

Availability Impact

LOW

Exploitability Score

1.7

Impact Score

3.7

CvssVersion

3.1

Exploit Intelligence

EPSS Score

0.39%

Probability of exploitation in next 30 days

EPSS Percentile

31.2%

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 43rd percentile among its peer group of 4,937 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

patchstack.com / database/vulnerability/molongui-authorship/wordpress-author-box-for-authors-co-authors-multiple-authors-and-guest-authors-molongui-plugin-4-6-19-cross-site-scripting-xss-vulnerability

Third Party Advisory