How severe is CVE-2026-57323?

CVE-2026-57323 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-57323 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-57323?

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

When was CVE-2026-57323 published?

CVE-2026-57323 was published on 2026-06-26.

CVE-2026-57323

CVE-2026-57323 is a medium-severity vulnerability with a CVSS 3.x base score of 5.8. 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-862.

Key facts

Severity: Medium (CVSS 3.x base score 5.8)
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Published: 2026-06-26
Last modified: 2026-06-26

Description

Unauthenticated Broken Access Control in Flash & HTML5 Video <= 2.11.0 versions.

Frequently asked questions

What is CVE-2026-57323?: Unauthenticated Broken Access Control in Flash & HTML5 Video <= 2.11.0 versions.
How severe is CVE-2026-57323?: CVE-2026-57323 has a CVSS 3.x base score of 5.8, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-57323 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-57323?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-57323 published?: CVE-2026-57323 was published on 2026-06-26.

References

https://patchstack.com/database/wordpress/plugin/html5-video-player/vulnerability/wordpress-flash-html5-video-plugin-2-11-0-broken-access-control-vulnerability?_s_id=cve

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