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Vulnerabilities

Vulnerability · CVE-2026-27833

Piwigo is an open source photo gallery application for the web.

Published Apr 3, 2026 · catalog updated Jul 24, 2026 · Piwigo is an open

Check if you run it

No confirmed exploitation is on record for CVE-2026-27833. EPSS is 1.70%. Act only if a listed version of Piwigo is an open is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Piwigo is an open).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.70%
Remediation
Advisory link
Affected products
cpe piwigo/piwigo

Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the pwg.history.search API method in Piwigo is registered without the admin_only option, allowing unauthenticated users to access the full browsing history of all gallery visitors. This issue has been patched in version 16.3.0.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe piwigo/piwigoversion unspecified

How to fix CVE-2026-27833

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-27833. EPSS is 1.70%. Act only if a listed version of Piwigo is an open is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-862: Missing Authorization. EPSS 1.70%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Apr 3, 2026 · NIST NVD

    Detected

    Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the pwg.history.search API method in Piwigo is registered without the admin_only option, allowing unauthenticated users to access the full browsing history of all gallery visitors. This issue has been patched in version 16.3.0.

  2. Jul 24, 2026 · NIST NVD

    Updated

    Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the pwg.history.search API method in Piwigo is registered without the admin_only option, allowing unauthenticated users to access the full browsing history of all gallery visitors. This issue has been patched in version 16.3.0.

Sources

  • CVE.orgVulnerability recordCVE-2026-27833

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-27833

    30-day exploitation probability 1.7%

    first.org
  • NIST NVDVulnerability recordCVE-2026-27833

    Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the pwg.history.search API method in Piwigo is registered without the admin_only option, allowing unauthenticated users to access the full browsing history of all gallery visitors. This issue

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.