What is CVE-2023-48631?

CVE-2023-48631 is a medium-severity vulnerability in Adobe Css-Tools, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2023-12-14.

How severe is CVE-2023-48631?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Improper input validation in Adobe Css-Tools

CVE-2023-48631

@adobe/css-tools versions 4.3.1 and earlier are affected by an Improper Input Validation vulnerability that could result in a denial of service while attempting to parse CSS.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2023-12-14 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.011 (64.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: -0.000

Affected products

Adobe Css-Tools
Adobe Not A Product — versions 0

Weakness classification (CWE)

References

github.com/adobe/css-tools/security/advisories/GHSA-prr3-c3m5-p7q2 (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2023-48631?: CVE-2023-48631 is a medium-severity vulnerability in Adobe Css-Tools, classified under Improper Input Validation. CVSS score: 5.3/10. Published 2023-12-14.
How severe is CVE-2023-48631?: Medium severity. CVSS v3 base score is 5.3 out of 10.