CVE-2026-27833

HIGH NUCLEI

Piwigo: Unauthenticated Information Disclosure via pwg.history.search API

Title source: cna

Exploitation Summary

CVE-2026-27833 has a Nuclei detection template available — see the Nuclei card below for the Shodan/FOFA recon queries.

Description

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.

Nuclei Templates (1)

Piwigo < 16.3.0 - Unauthenticated Information Disclosure via History API

HIGHby 0x_Akoko

FOFA: icon_hash=="540706145"

References (3)

Core 3

Core References

X_Refsource_Confirm x_refsource_confirm

https://github.com/Piwigo/Piwigo/security/advisories/GHSA-397m-gfhm-pmg2

X_Refsource_Misc x_refsource_misc

https://github.com/Piwigo/Piwigo/commit/d05c16561ce3692ca922199f8c8d7b1a45893f1c

View Writeup ZIP pw:eip

X_Refsource_Misc x_refsource_misc

https://piwigo.org/release-16.3.0

Scores

CVSS v3 7.5

EPSS 0.0123

EPSS Percentile 65.0%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-862

Status published

Products (2)

piwigo/piwigo < 16.3.0

Piwigo/Piwigo < 16.3.0

Published Apr 03, 2026

Tracked Since Apr 04, 2026