How severe is CVE-2023-48631?

CVE-2023-48631 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2023-48631 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-48631?

CVE-2023-48631 affects Adobe Css-tools. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-48631?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2023-48631 published?

CVE-2023-48631 was published on 2023-12-14 and last updated on 2026-06-17.

CVE-2023-48631

CVE-2023-48631 is a medium-severity vulnerability in Adobe Css-tools with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-1333.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 1% (62nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-1333
Affected product: Adobe Css-tools
Published: 2023-12-14
Last modified: 2026-06-17

Description

@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.

Frequently asked questions

What is 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.
How severe is CVE-2023-48631?: CVE-2023-48631 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-48631 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (62nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-48631?: CVE-2023-48631 affects Adobe Css-tools. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-48631?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-48631 published?: CVE-2023-48631 was published on 2023-12-14 and last updated on 2026-06-17.

References

https://github.com/adobe/css-tools/security/advisories/GHSA-prr3-c3m5-p7q2

Affected products (1)

cpe:2.3:a:adobe:css-tools:*:*:*:*:*:node.js:*:*

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