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CVE-2026-78187— Piwigo Public Authentication cross site scripting

Quick assessment

Affected
n/a Piwigo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 Piwigo 16.3.0 中发现一个漏洞，影响“公共身份验证页面”组件中的某个未知函数。通过对参数 的操纵可导致跨站脚本攻击（XSS）。该攻击可从远程发起，攻击复杂度较高，利用难度较大。该漏洞的利用方法已向公众披露，可能被利用。升级到版本 16.4.0 可修复此问题。补丁名称为 。建议尽快升级受影响的组件。

CVSS 3.1 · Low
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I. Basic Information for CVE-2026-78187

Vulnerability Information
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Vulnerability Title
Piwigo Public Authentication cross site scripting
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
- Piwigo 16.3.0 cpe:2.3:a:piwigo:piwigo:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-78187

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III. Intelligence Information for CVE-2026-78187

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Patches & Fixes for CVE-2026-78187 (1)

Vendor Advisories for CVE-2026-78187 (3)

Proof of Concept for CVE-2026-78187 (1)

Vendor Pages for CVE-2026-78187 (1)

Other References for CVE-2026-78187 (2)

Same Patch Batch · n/a · 2026-08-24 · 19 CVEs total

CVE-2026-78157 7.4 HIGH Open5GS Rx AA-Request pcrf-rx-path.c pcrf_rx_aar_cb out-of-bounds
CVE-2026-78178 7.3 HIGH jQWidgets jqx-all.js jqxBaseFramework.extend prototype pollution
CVE-2026-78158 6.3 MEDIUM Open5GS AMF UEContextReleaseRequest Path improper authorization
CVE-2026-78186 4.3 MEDIUM Open5GS HSS hss-cx-path.c assertion
CVE-2022-30983 Nopaperforms Niaa-Chatbot<=2022-05-17跨站脚本漏洞
CVE-2026-56135 NTFS-3G<2026.2.25堆缓冲区溢出漏洞
CVE-2026-56136 NTFS-3G漏洞：索引.c越界读取致信息泄露
CVE-2026-52490 LibTiff 代码执行漏洞
CVE-2026-52492 libtiff rgb2ycbcr堆缓冲区溢出漏洞
CVE-2026-75464 OneNav 1.2.4 存在认证任意文件删除漏洞
CVE-2025-26238 D-Link DI-8100G 17.12.20A1 任意代码执行漏洞
CVE-2026-71832 Aria2 1.37.0及以下版本除零漏洞致拒绝服务
CVE-2026-75369 SpaceDot AcubeSAT OBC越界读取致DoS
CVE-2026-75368 SpaceDot AcubeSAT OBC eaf90ec栈溢出导致DoS
CVE-2025-26237 D-Link DI-7001 19.10.31A1命令注入漏洞
CVE-2026-75371 SpaceDot AcubeSAT OBC eaf90ec整型处理漏洞致DoS
CVE-2026-75370 SpaceDot AcubeSAT OBC越界读写导致DoS漏洞
CVE-2026-30512 Entevo HMI V2 R5 P0 M4本地提权漏洞

IV. Related Vulnerabilities

Same product: Piwigo
Same vendor: n/a
Same weakness: CWE-79

V. Comments for CVE-2026-78187

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