3.1

CVE-2026-78187

Piwigo Public Authentication cross site scripting

A vulnerability has been found in Piwigo 16.3.0. This impacts an unknown function of the component Public Authentication Page. Such manipulation of the argument lang leads to cross site scripting. The attack may be performed from remote. A high complexity level is associated with this attack. The exploitability is said to be difficult. The exploit has been disclosed to the public and may be used. Upgrading to version 16.4.0 will fix this issue. The name of the patch is 5277a7dee4b8f1a174f1d69e1e2a4e1c82a3fc9e. It is recommended to upgrade the affected component.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
Herstellern/a
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Produkt Piwigo
Version 16.3.0
Status affected
Version 16.4.0
Status unaffected
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.41% 0.341
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@vuldb.com 1.3 0 0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
cna@vuldb.com 3.1 1.6 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
cna@vuldb.com 2.6 4.9 2.9
AV:N/AC:H/Au:N/C:N/I:P/A:N
CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

CWE-94 Improper Control of Generation of Code ('Code Injection')

The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.

https://github.com/Leousum/VulnPoC/blob/main/Piwigo%2016.3.0/reflected_XSS.md
https://github.com/Piwigo/Piwigo/
https://github.com/Piwigo/Piwigo/commit/5277a7dee4b8f1a174f1d69e1e2a4e1c82a3fc9e
https://github.com/Piwigo/Piwigo/releases/tag/16.4.0
https://github.com/Piwigo/Piwigo/security/advisories/GHSA-rr39-mf4j-6594
https://vuldb.com/cve/CVE-2026-78187
https://vuldb.com/submit/885228
https://vuldb.com/vuln/394569
https://vuldb.com/vuln/394569/cti