What is CVE-2023-37602?

CVE-2023-37602 is a medium-severity vulnerability in Alkacon Opencms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-07-20.

How severe is CVE-2023-37602?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2023-37602 known to be exploited?

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

XSS in Alkacon Opencms

CVE-2023-37602

An arbitrary file upload vulnerability in the component /workplace#!explorer of Alkacon OpenCMS v15.0 allows attackers to execute arbitrary code via uploading a crafted PNG file.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-07-20 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.006 (47.3th percentile), scored 2026-09-29.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 47th percentile — 47.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Alkacon Opencms — versions 15.0.0

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

capture0x/My-CVE

References

www.exploit-db.com/exploits/51564 (Exploit, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2023-37602?: CVE-2023-37602 is a medium-severity vulnerability in Alkacon Opencms, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-07-20.
How severe is CVE-2023-37602?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2023-37602 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.