What is CVE-2023-48940?

CVE-2023-48940 is a medium-severity vulnerability in Daicuo, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-12-06.

How severe is CVE-2023-48940?

Medium severity. CVSS v3 base score is 5.4 out of 10.

XSS in Daicuo

CVE-2023-48940

A stored cross-site scripting (XSS) vulnerability in /admin.php of DaiCuo v2.5.15 allows attackers to execute arbitrary web scripts or HTML via a crafted payload.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-12-06 · last modified 2026-07-09.

CVSS v3 metric

CVSS v3 base score 5.4 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.004 (30.5th percentile), scored 2026-10-03.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 30.5% 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

Daicuo — versions 2.5.15

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

af854a3a-2127-422b-91ae-364da2661108 (Broken Link)
www.daicuo.net/ (Product)
gist.github.com/durian5201314/957af852a42dad9c07ceb3fb2f8359b2 (Third Party Advisory)

Frequently asked questions

What is CVE-2023-48940?: CVE-2023-48940 is a medium-severity vulnerability in Daicuo, classified under Cross-site Scripting. CVSS score: 5.4/10. Published 2023-12-06.
How severe is CVE-2023-48940?: Medium severity. CVSS v3 base score is 5.4 out of 10.