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CVE-2026-27634— Piwigo: Pre-auth SQL injection via date filter parameters in ws_std_image_sql_filter

Quick assessment

Affected
Piwigo 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.

Piwigo是Piwigo开源的一套基于Web的开源图片库软件。该软件包括图片管理、图片分类和权限管理等功能。 Piwigo 16.3.0之前版本存在SQL注入漏洞，该漏洞源于ws_std_image_sql_filter函数中四个日期过滤参数未经转义或类型验证直接拼接至SQL语句，可能导致未经验证的攻击者读取完整数据库，包括用户密码哈希。

AI Predicted 9.8 Difficulty: Trivial EPSS 0.79% · P55
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I. Basic Information for CVE-2026-27634

Vulnerability Information
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Vulnerability Title
Piwigo: Pre-auth SQL injection via date filter parameters in ws_std_image_sql_filter
Source: CVE Program / CVE List V5
Vulnerability Description
Piwigo is an open source photo gallery application for the web. Prior to version 16.3.0, the four date filter parameters (f_min_date_available, f_max_date_available, f_min_date_created, f_max_date_created) in ws_std_image_sql_filter() are concatenated directly into SQL without any escaping or type validation. This could result in an unauthenticated attacker reading the full database, including user password hashes. This issue has been patched in version 16.3.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Piwigo SQL注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Piwigo是Piwigo开源的一套基于Web的开源图片库软件。该软件包括图片管理、图片分类和权限管理等功能。 Piwigo 16.3.0之前版本存在SQL注入漏洞，该漏洞源于ws_std_image_sql_filter函数中四个日期过滤参数未经转义或类型验证直接拼接至SQL语句，可能导致未经验证的攻击者读取完整数据库，包括用户密码哈希。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Piwigo Piwigo < 16.3.0 -

II. Public POCs for CVE-2026-27634

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III. Intelligence Information for CVE-2026-27634

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Patches & Fixes for CVE-2026-27634 (1)

Vendor Advisories for CVE-2026-27634 (1)

Same Patch Batch · Piwigo · 2026-04-03 · 4 CVEs total

CVE-2026-27833 7.5 HIGH Piwigo: Unauthenticated Information Disclosure via pwg.history.search API
CVE-2026-27885 7.2 HIGH Piwigo: SQL Injection in Activity.getList
CVE-2026-27834 7.2 HIGH Piwigo: SQL Injection in pwg.users.getList API Method via filter Parameter

IV. Related Vulnerabilities

Same product: Piwigo
Same vendor: Piwigo
Same weakness: CWE-89

V. Comments for CVE-2026-27634

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