How severe is CVE-2026-36762?

CVE-2026-36762 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-2026-36762 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-36762?

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-2026-36762 have an EU (EUVD) identifier?

Yes. CVE-2026-36762 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26396.

When was CVE-2026-36762 published?

CVE-2026-36762 was published on 2026-04-30 and last updated on 2026-06-17.

CVE-2026-36762

CVE-2026-36762 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-22.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-26396
Weakness: CWE-22
Published: 2026-04-30
Last modified: 2026-06-17

Description

An issue in the fileEntityId parameter in the /a/file/upload endpoint of JeeSite v5.15.1 allows authenticated attackers with file upload permissions to execute a path traversal and write arbitrary files with whitelisted suffixes to arbitrary filesystem locations.

Frequently asked questions

What is CVE-2026-36762?: An issue in the fileEntityId parameter in the /a/file/upload endpoint of JeeSite v5.15.1 allows authenticated attackers with file upload permissions to execute a path traversal and write arbitrary files with whitelisted suffixes to arbitrary filesystem locations.
How severe is CVE-2026-36762?: CVE-2026-36762 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-2026-36762 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-36762?: 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-2026-36762 have an EU (EUVD) identifier?: Yes. CVE-2026-36762 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-26396.
When was CVE-2026-36762 published?: CVE-2026-36762 was published on 2026-04-30 and last updated on 2026-06-17.

References

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