How severe is CVE-2026-8211?

CVE-2026-8211 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-8211 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-8211?

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

Does CVE-2026-8211 have an EU (EUVD) identifier?

Yes. CVE-2026-8211 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28947.

When was CVE-2026-8211 published?

CVE-2026-8211 was published on 2026-05-09 and last updated on 2026-06-17.

CVE-2026-8211

CVE-2026-8211 is a medium-severity vulnerability with a CVSS 3.x base score of 4.7. 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-74.

Key facts

Severity: Medium (CVSS 3.x base score 4.7)
CVSS v2: 5.8
CVSS v4: 2.0
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-28947
Weakness: CWE-74
Published: 2026-05-09
Last modified: 2026-06-17

Description

A vulnerability was detected in codelibs Fess up to 15.5.1. Affected by this issue is the function update of the file org/codelibs/fess/app/web/admin/design/AdminDesignAction.java of the component JSP File Handler. The manipulation of the argument content results in code injection. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Frequently asked questions

What is CVE-2026-8211?: A vulnerability was detected in codelibs Fess up to 15.5.1. Affected by this issue is the function update of the file org/codelibs/fess/app/web/admin/design/AdminDesignAction.java of the component JSP File Handler. The manipulation of the argument content results in code injection. The attack may be performed from remote. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
How severe is CVE-2026-8211?: CVE-2026-8211 has a CVSS 3.x base score of 4.7, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-8211 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-8211?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-8211 have an EU (EUVD) identifier?: Yes. CVE-2026-8211 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-28947.
When was CVE-2026-8211 published?: CVE-2026-8211 was published on 2026-05-09 and last updated on 2026-06-17.

References

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