What is CVE-2023-43345?

CVE-2023-43345 is a high-severity vulnerability in Opensolution Quick Cms, classified under Cross-site Scripting. CVSS score: 8.6/10. Published 2023-10-19.

How severe is CVE-2023-43345?

High severity. CVSS v3 base score is 8.6 out of 10.

Is CVE-2023-43345 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Opensolution Quick Cms

CVE-2023-43345

Cross-site scripting (XSS) vulnerability in opensolution Quick CMS v.6.7 allows a local attacker to execute arbitrary code via a crafted script to the Content - Name parameter in the Pages Menu component.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-10-19 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.004 (27.3th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 27th percentile — 27.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000

Affected products

Opensolution Quick Cms — versions 6.7

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

References

github.com/sromanhu/CVE-2023-43345-Quick-CMS-Stored-XSS---Pages-Content (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2023-43345?: CVE-2023-43345 is a high-severity vulnerability in Opensolution Quick Cms, classified under Cross-site Scripting. CVSS score: 8.6/10. Published 2023-10-19.
How severe is CVE-2023-43345?: High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2023-43345 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.