CVE-2026-42322

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

1.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 69.7% of scored records. A rank, not a probability.

NVD base score

9.1 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-09-28.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-09-25 15:50Z1 MO AGO

Last updated

2026-09-28 14:34Z1 MO AGO

Reserved

2026-04-26

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

Critical (CVSS 9.1)

CNA CVSS vector

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

Weaknesses

• CWE-434Unrestricted Upload of File with Dangerous TypeBase

Data version

5.2

Document digest

4371ebb259baba9d14215036218141502eaf82c4ef95c93b3fbf445098a096df

• github.comhttps://github.com/Piwigo/Piwigo/security/advisories/GHSA-7w97-5g4p-xqvvx_refsource_CONFIRM
• github.comhttps://github.com/Piwigo/Piwigo/commit/1e7f7262cb30e6916779f93e66d5d6579ec75a11x_refsource_MISC
• github.comhttps://github.com/Piwigo/Piwigo/commit/4a13ec9a8f4881ae1f23bdfd24d7b90cd0802cdcx_refsource_MISC
• github.comhttps://github.com/Piwigo/Piwigo/releases/tag/16.4.0x_refsource_MISC