What is CVE-2023-4913?

CVE-2023-4913 is a medium-severity vulnerability in Cecil, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-09-12.

How severe is CVE-2023-4913?

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

XSS in Cecil

CVE-2023-4913

Cross-site Scripting (XSS) - Reflected in GitHub repository cecilapp/cecil prior to 7.47.1.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2023-09-12 · 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: 0.005 (41.9th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 42nd percentile — 41.9% 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: 0.005 · change: +0.001

Affected products

Cecil
Cecilapp Cecilapp/cecil — versions unspecified

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

Frequently asked questions

What is CVE-2023-4913?: CVE-2023-4913 is a medium-severity vulnerability in Cecil, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2023-09-12.
How severe is CVE-2023-4913?: Medium severity. CVSS v3 base score is 6.1 out of 10.