Multiple cross-site request forgery (CSRF) vulnerabilities in Koha 3.14.x before 3.14.16, 3.16.x before 3.16.12, 3.18.x before 3.18.08, and 3.20.x before 3.20.1 allow remote attackers to (1) hijack the authentication of administrators for requests that create a user via a request to members/memberentry.pl or (2) give a user superlibrarian permission via a request to members/member-flags.pl or (3) hijack the authentication of arbitrary users for requests that conduct cross-site scripting (XSS) attacks via the addshelf parameter to opac-shelves.pl
Published Oct 18, 2018
8.0
HIGHCVSS 3.0
EPSS 2.97%
Description
Multiple cross-site request forgery (CSRF) vulnerabilities in Koha 3.14.x before 3.14.16, 3.16.x before 3.16.12, 3.18.x before 3.18.08, and 3.20.x before 3.20.1 allow remote attackers to (1) hijack the authentication of administrators for requests that create a user via a request to members/memberentry.pl or (2) give a user superlibrarian permission via a request to members/member-flags.pl or (3) hijack the authentication of arbitrary users for requests that conduct cross-site scripting (XSS) attacks via the addshelf parameter to opac-shelves.pl.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:S/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.97% (0.02974) | 86.78th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.97% (0.02974) | 85.45th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.91% (0.00908) | 74.16th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.47% (0.00467) | 76.32th | v3 (v2023.03.01) |
| Jun 6, 2024 | 0.57% (0.00569) | 77.83th | v3 (v2023.03.01) |
| Mar 10, 2024 | 0.69% (0.00693) | 79.67th | v3 (v2023.03.01) |
| Oct 12, 2023 | 0.70% (0.00703) | 78.07th | v3 (v2023.03.01) |
| Jul 8, 2023 | 0.66% (0.00665) | 76.93th | v3 (v2023.03.01) |
| Jul 5, 2023 | 0.30% (0.00300) | 65.22th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.33% (0.00328) | 66.22th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.48% (0.01483) | 73.51th | v2 (v2022.01.01) |
| Mar 2, 2023 | 1.48% (0.01483) | 73.49th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.48% (0.01483) | 71.49th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.48% (0.01483) | 50.57th | v2 (v2022.01.01) |
References (9)
- https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=14423 x_refsource_CONFIRMExploitIssue TrackingVendor Advisory
- https://koha-community.org/koha-3-14-16-released/ x_refsource_CONFIRMProductRelease NotesVendor Advisory
- https://koha-community.org/security-release-koha-3-16-12/ x_refsource_CONFIRMProductRelease NotesVendor Advisory
- https://koha-community.org/security-release-koha-3-18-8/ x_refsource_CONFIRMProductRelease NotesVendor Advisory
- https://koha-community.org/security-release-koha-3-20-1/ x_refsource_CONFIRMProductRelease NotesVendor Advisory
- https://packetstormsecurity.com/files/132458/Koha-ILS-3.20.x-CSRF-XSS-Traversal-SQL-Injection.html x_refsource_MISCExploitThird Party AdvisoryVDB Entry
- https://seclists.org/fulldisclosure/2015/Jun/80 mailing-listx_refsource_FULLDISCExploitMailing ListThird Party Advisory
- https://www.exploit-db.com/exploits/37389/ exploitx_refsource_EXPLOIT-DBThird Party AdvisoryVDB Entry
- https://www.sba-research.org/2015/06/24/researchers-of-sba-research-found-several-critical-security-vulnerabilities-in-the-koha-library-software-via-combinatorial-testing/ x_refsource_MISCThird Party Advisory
Change history (0)
No recorded changes yet.