How severe is CVE-2025-30222?

CVE-2025-30222 has a CVSS 4.0 base score of 2.1, rated low severity.

Is CVE-2025-30222 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-30222?

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

Does CVE-2025-30222 have an EU (EUVD) identifier?

Yes. CVE-2025-30222 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8207.

When was CVE-2025-30222 published?

CVE-2025-30222 was published on 2025-03-25 and last updated on 2026-06-17.

CVE-2025-30222

CVE-2025-30222 is a low-severity vulnerability with a CVSS 4.0 base score of 2.1. 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-200.

Key facts

Severity: Low (CVSS 4.0 base score 2.1)
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-8207
Weakness: CWE-200
Published: 2025-03-25
Last modified: 2026-06-17

Description

Shescape is a simple shell escape library for JavaScript. Versions 1.7.2 through 2.1.1 are vulnerable to potential environment variable exposure on Windows with CMD. This impact users of Shescape on Windows that explicitly configure `shell: 'cmd.exe'` or `shell: true` using any of `quote`/`quoteAll`/`escape`/`escapeAll`. An attacker may be able to get read-only access to environment variables. This bug has been patched in v2.1.2. For those who are already using v2 of Shescape, no further changes are required. Those who are are using v1 of Shescape should follow the migration guide to upgrade to v2. There is no plan to release a patch compatible with v1 of Shescape. As a workaround, users can remove all instances of `%` from user input before using Shescape.

Frequently asked questions

What is CVE-2025-30222?: Shescape is a simple shell escape library for JavaScript. Versions 1.7.2 through 2.1.1 are vulnerable to potential environment variable exposure on Windows with CMD. This impact users of Shescape on Windows that explicitly configure `shell: 'cmd.exe'` or `shell: true` using any of `quote`/`quoteAll`/`escape`/`escapeAll`. An attacker may be able to get read-only access to environment variables. This bug has been patched in v2.1.2. For those who are already using v2 of Shescape, no further changes are required. Those who are are using v1 of Shescape should follow the migration guide to upgrade to v2. There is no plan to release a patch compatible with v1 of Shescape. As a workaround, users can remove all instances of `%` from user input before using Shescape.
How severe is CVE-2025-30222?: CVE-2025-30222 has a CVSS 4.0 base score of 2.1, rated low severity.
Is CVE-2025-30222 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-30222?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-30222 have an EU (EUVD) identifier?: Yes. CVE-2025-30222 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-8207.
When was CVE-2025-30222 published?: CVE-2025-30222 was published on 2025-03-25 and last updated on 2026-06-17.

References

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