Is there a public exploit for CVE-2026-103939?

No public exploit for CVE-2026-103939 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-103939?

CVE-2026-103939 scores CVSS 5.4 (v3.1), rated medium.

5.4 Medium

OpenEMR is a free and open source electronic health records and medical practice management application.

CVE-2026-103939

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to 8.3.0, interface/modules/custommodules/oe-module-weno/scripts/filedownload.php has no ACL or CSRF check and ignores the result of validateAdminCredentials(). When the Weno module is enabled, the default GET path calls PharmacyService::removeWenoPharmacies() before attempting a refetch, allowing any authenticated user to truncate the wenopharmacy table and allowing a cross-site request to trigger the same operation through a logged-in victim. A failed later download can leave the e-prescribing pharmacy directory empty and unavailable. This issue is fixed in version 8.3.0.

Assessment

CVSS: 5.4 (v3.1)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 5 November 2026
Last updated: 10 November 2026
Weakness: CWE-862
Assigner: security-advisories@github.com

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L

At the source

References

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