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CVE-2026-31844

Authenticated SQL Injection in Koha displayby parameter of suggestion.pl

High8.7Public exploitEPSS 0.42%
Published
Updated
Reserved
Assigned by
TuranSec

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.

Public exploit

An exploit or proof of concept is public: anyone can try it against an unpatched system. CISA's SSVC rates its exploitation: a proof of concept is public.

Timeline

  1. ID reserved

    By TuranSec

  2. · 2 days later

    Published

  3. · 5 months later

    Record updated

Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.

Scores

CVSS scores of CVE-2026-31844, by who scored it
Scored byCVSSScoreVector
TuranSecCNA (assigner)4.0High8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
TuranSecCNA (assigner)3.1High8.8CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
TuranSecCNA (assigner)2.0Critical9.0AV:N/AC:L/Au:S/C:C/I:C/A:C
NVDNVD · Modified4.0High8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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
EPSS (exploitation in 30 days)
0.42% · top 63% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: poc · Automatable: no · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.7.

Weakness

Affected products

  • Koha Community · Koha

    • affected 24.11.0 – ≤ 24.11.12
    • affected 25.05.0 – ≤ 25.05.07
    • affected 25.11.0 – ≤ 25.11.01

References (3)

Sources

The same CVE in the primary databases and aggregators, to check against.

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Record last updated .