How severe is CVE-2026-49781?

CVE-2026-49781 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-49781 being actively exploited?

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

How do I fix CVE-2026-49781?

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

Does CVE-2026-49781 have an EU (EUVD) identifier?

Yes. CVE-2026-49781 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36898.

When was CVE-2026-49781 published?

CVE-2026-49781 was published on 2026-06-15 and last updated on 2026-06-17.

CVE-2026-49781

CVE-2026-49781 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-36898
Weakness: CWE-502
Published: 2026-06-15
Last modified: 2026-06-17

Description

Unauthenticated PHP Object Injection in OttoKit <= 1.1.27 versions.

Frequently asked questions

What is CVE-2026-49781?: Unauthenticated PHP Object Injection in OttoKit <= 1.1.27 versions.
How severe is CVE-2026-49781?: CVE-2026-49781 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-49781 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-49781?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-49781 have an EU (EUVD) identifier?: Yes. CVE-2026-49781 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-36898.
When was CVE-2026-49781 published?: CVE-2026-49781 was published on 2026-06-15 and last updated on 2026-06-17.

References

https://patchstack.com/database/wordpress/plugin/suretriggers/vulnerability/wordpress-ottokit-plugin-1-1-27-php-object-injection-vulnerability?_s_id=cve

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