CVE-2023-43876

FAUCET Score

CVE-2023-43876 is a Cross-Site Scripting (XSS) vulnerability affecting October CMS installations up to version 3.4.16, allowing an authenticated attacker to inject malicious web scripts through the dbhost field. Rated Medium with a CVSS score of 5.4, this vulnerability requires user interaction and low privileges, potentially leading to limited impact on confidentiality and integrity. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

Vendor	Product	Version(s)	CPE
		3.4.16CPE matchmatch criteria	cpe:2.3:a:octobercms:october:3.4.16:::::::*

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

0.40%

Probability of exploitation in next 30 days

EPSS Percentile

32.9%

Percentile rank of EPSS score among Peer Group

As of 2026-07-27

Model: v2026.06.15

This CVE's current EPSS score of 0.0040 is in the 49th percentile among its peer group of 15,239 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

Vendor Advisories (1)

composerGHSA-2g8p-j2r6-vqpjmedium

Withdrawn Advisory: October Cross-site Scripting vulnerability

Sep 28, 2023

References

github.com / sromanhu/October-CMS-Reflected-XSS---Installation/blob/main/README.md

ExploitThird Party Advisory