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CVE-2026-31844— Authenticated SQL Injection in Koha displayby parameter of suggestion.pl

Quick assessment

Affected
Koha Community Koha
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.

Koha是Koha组织的一个用于图书馆自动化管理建站系统。 Koha存在安全漏洞，该漏洞源于/cgi-bin/koha/suggestion/suggestion.pl端点中displayby参数验证不当，可能导致低权限工作人员用户通过特制请求注入任意SQL查询，从而完全破坏后端数据库。

CVSS 8.8 · High EPSS 0.57% · P45

Affected Version Matrix 3

VendorProduct Version RangeStatus
Koha Community Koha 24.11.0≤ 24.11.12 affected
25.05.0≤ 25.05.07 affected
25.11.0≤ 25.11.01 affected
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I. Basic Information for CVE-2026-31844

Vulnerability Information
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Vulnerability Title
Authenticated SQL Injection in Koha displayby parameter of suggestion.pl
Source: CVE Program / CVE List V5
Vulnerability Description
An authenticated SQL Injection vulnerability (CWE-89) exists in the Koha staff interface in the /cgi-bin/koha/suggestion/suggestion.pl endpoint due to improper validation of the displayby parameter used by the GetDistinctValues functionality. Successful exploitation may lead to full compromise of the backend database, including disclosure or modification of stored data.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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
Koha 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Koha是Koha组织的一个用于图书馆自动化管理建站系统。 Koha存在安全漏洞，该漏洞源于/cgi-bin/koha/suggestion/suggestion.pl端点中displayby参数验证不当，可能导致低权限工作人员用户通过特制请求注入任意SQL查询，从而完全破坏后端数据库。
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
Koha Community Koha 24.11.0 ~ 24.11.12 -

II. Public POCs for CVE-2026-31844

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III. Intelligence Information for CVE-2026-31844

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Vendor Advisories for CVE-2026-31844 (1)

Security Blog Posts for CVE-2026-31844 (1)

Vendor Pages for CVE-2026-31844 (1)

IV. Related Vulnerabilities

Same product: Koha
Same vendor: Koha Community
Same weakness: CWE-89

V. Comments for CVE-2026-31844

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