Is there a public exploit for CVE-2026-103441?

Yes. Proof-of-concept code for CVE-2026-103441 has been published publicly.

Is there a proof of concept for CVE-2026-103441?

Yes — 1 proof-of-concept entry is linked on this page, from public repositories and community submissions. They are listed for authorised testing only.

How severe is CVE-2026-103441?

CVE-2026-103441 scores CVSS 7.2 (v4.0), rated high. EPSS puts the chance of exploitation in the next 30 days at 0.28%.

What does CVE-2026-103441 affect?

CVE-2026-103441 affects The Wikimedia Foundation MediaWiki Wikibase extension.

7.2 High

Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in…

CVE-2026-103441

Deserialization of untrusted data vulnerability in The Wikimedia Foundation MediaWiki Wikibase extension allows Leverage Executable Code in Non-Executable Files. This issue affects MediaWiki Wikibase extension: 1.46, 1.45, and 1.43.

Proof-of-concept code is published

Public PoC

Public PoCBomboBombone/CVE-2026-103441

Signals come from Exploit-DB, Metasploit, Nuclei and published proof-of-concept repositories. Their absence means nothing was found, not that nothing exists.

Assessment

CVSS: 7.2 (v4.0)
Severity: High
EPSS: 0.28% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Public PoC
Published: 30 September 2026
Last updated: 9 November 2026
Affected: The Wikimedia Foundation · MediaWiki Wikibase extension
Assigner: wikimedia-foundation

CVSS vectorCVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:A/VC:H/VI:H/VA:L/SC:H/SI:H/SA:L/E:P/S:N/AU:Y/R:I/V:C/RE:M/U:Red

At the source

EUVD (ENISA)

References

Community proofs of concept

No community proof of concept yet. If you have one for a published vulnerability and the right to share it, add it below — it will appear here once reviewed.

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Query this programmatically

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