How severe is CVE-2025-26999?

CVE-2025-26999 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-26999 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-26999?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-26999 have an EU (EUVD) identifier?

Yes. CVE-2025-26999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-5598.

When was CVE-2025-26999 published?

CVE-2025-26999 was published on 2025-03-03 and last updated on 2026-06-17.

CVE-2025-26999

CVE-2025-26999 is a high-severity vulnerability with a CVSS 3.x base score of 8.8. 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-502.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-5598
Weakness: CWE-502
Published: 2025-03-03
Last modified: 2026-06-17

Description

Deserialization of Untrusted Data vulnerability in Metagauss ProfileGrid profilegrid-user-profiles-groups-and-communities allows Object Injection.This issue affects ProfileGrid : from n/a through <= 5.9.4.3.

Frequently asked questions

What is CVE-2025-26999?: Deserialization of Untrusted Data vulnerability in Metagauss ProfileGrid profilegrid-user-profiles-groups-and-communities allows Object Injection.This issue affects ProfileGrid : from n/a through <= 5.9.4.3.
How severe is CVE-2025-26999?: CVE-2025-26999 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-26999 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-26999?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-26999 have an EU (EUVD) identifier?: Yes. CVE-2025-26999 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-5598.
When was CVE-2025-26999 published?: CVE-2025-26999 was published on 2025-03-03 and last updated on 2026-06-17.

References

https://patchstack.com/database/Wordpress/Plugin/profilegrid-user-profiles-groups-and-communities/vulnerability/wordpress-profilegrid-plugin-5-9-4-3-php-object-injection-vulnerability?_s_id=cve

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