CVE-2026-44642High· 8.1▾ MidnightPoC available

Piwigo is a full featured open source photo gallery application for the web

▾ Midnight zone — Critical, or high with PoC / in-the-wild

Depth score57/ 100 · Moderate

impact 44.6 · likelihood 0 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

…

Published

Sep 25, 2026

Updated

Sep 25, 2026

CVSS

8.1

Vendor

Piwigo

Product

Piwigo

CWE

CWE-89

Depth score

57 · Moderate

EPSS

—

Platforms

—

Source

NVD

Vector

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

CISA SSVC

decided 2026-09-25

Exploitation: poc
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

2 events · 1 day

Sep 25, 2026Published
Disclosed via NVD
Sep 25, 2026Public exploit observed
Exploit / PoC code exists

Piwigo CWE-89 #nvd #cve.org #exploit-available

Affected

Piwigo < 16.4.0

Full technical detail▾

Overview

Piwigo is a full featured open source photo gallery application for the web. Prior to 16.4.0, check_upgrade_access_rights() in admin/include/functions_upgrade.php conditionally escapes the submitted username only when the removed get_magic_quotes_gpc function exists, so PHP 8 and later concatenate an unauthenticated username directly into the upgrade authentication SQL query. When database upgrades are pending, a crafted query result can satisfy the status and password checks, set PHPWG_IN_UPGRADE, and authorize upgrade execution without valid administrator credentials. This can cause unauthorized database integrity changes and service disruption. This vulnerability is fixed in 16.4.0.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Sep 25, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#exploit-available

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CVE-2026-44642High· 8.1▾ MidnightPoC available

Piwigo is a full featured open source photo gallery application for the web

▾ Midnight zone — Critical, or high with PoC / in-the-wild

Depth score57/ 100 · Moderate

impact 44.6 · likelihood 0 · exploitation 12

⚡ Agent-ready:Raw markdown ↗JSON ↗

Proof of concept

A public proof-of-concept already exists for this vulnerability — see Exploit availability below.

…

Published

Sep 25, 2026

Updated

Sep 25, 2026

CVSS

8.1

Vendor

Piwigo

Product

Piwigo

CWE

CWE-89

Depth score

57 · Moderate

EPSS

—

Platforms

—

Source

NVD

Vector

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

CISA SSVC

decided 2026-09-25

Exploitation: poc
Automatable: no
Technical impact: total

Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

2 events · 1 day

Sep 25, 2026Published
Disclosed via NVD
Sep 25, 2026Public exploit observed
Exploit / PoC code exists

Piwigo CWE-89 #nvd #cve.org #exploit-available

Affected

Piwigo < 16.4.0

Full technical detail▾

Overview

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Sep 25, 2026Public exploit / PoC published

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org#exploit-available