How severe is CVE-2025-23210?

CVE-2025-23210 has a CVSS 4.0 base score of 4.8, rated medium severity.

Is CVE-2025-23210 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-23210?

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

Does CVE-2025-23210 have an EU (EUVD) identifier?

Yes. CVE-2025-23210 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0222.

When was CVE-2025-23210 published?

CVE-2025-23210 was published on 2025-02-03 and last updated on 2026-06-17.

CVE-2025-23210

CVE-2025-23210 is a medium-severity vulnerability with a CVSS 4.0 base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 4.0 base score 4.8)
EPSS exploit prediction: 0% (32nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-0222
Weakness: CWE-79
Published: 2025-02-03
Last modified: 2026-06-17

Description

phpoffice/phpspreadsheet is a pure PHP library for reading and writing spreadsheet files. Affected versions have been found to have a Bypass of the Cross-site Scripting (XSS) sanitizer using the javascript protocol and special characters. This issue has been addressed in versions 3.9.0, 2.3.7, 2.1.8, and 1.29.9. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Frequently asked questions

What is CVE-2025-23210?: phpoffice/phpspreadsheet is a pure PHP library for reading and writing spreadsheet files. Affected versions have been found to have a Bypass of the Cross-site Scripting (XSS) sanitizer using the javascript protocol and special characters. This issue has been addressed in versions 3.9.0, 2.3.7, 2.1.8, and 1.29.9. Users are advised to upgrade. There are no known workarounds for this vulnerability.
How severe is CVE-2025-23210?: CVE-2025-23210 has a CVSS 4.0 base score of 4.8, rated medium severity.
Is CVE-2025-23210 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (32nd percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-23210?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-23210 have an EU (EUVD) identifier?: Yes. CVE-2025-23210 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-0222.
When was CVE-2025-23210 published?: CVE-2025-23210 was published on 2025-02-03 and last updated on 2026-06-17.

References

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CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

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