What is CVE-2015-4630?

CVE-2015-4630 is a high-severity vulnerability in Koha, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.0/10. Published 2018-10-18.

How severe is CVE-2015-4630?

High severity. CVSS v3 base score is 8.0 out of 10.

CSRF in Koha

CVE-2015-4630

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.

Vulnerability class: CSRF (Cross-Site Request Forgery)

Published 2018-10-18 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.0 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.030 (87.2th percentile), scored 2026-10-31.

Low probability of exploitation in the next 30 days, but still tracked. 87th percentile — 87.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.030 · newest: 0.030 · change: 0.000

Affected products

Koha

Weakness classification (CWE)

CWE-352 — Cross-Site Request Forgery (CSRF)

References

packetstormsecurity.com/files/132458/Koha-ILS-3.20.x-CSRF-XSS-Traversal-SQL-Inj… (Exploit, VDB Entry, Third Party Advisory)
www.sba-research.org/2015/06/24/researchers-of-sba-research-found-several-criti… (Third Party Advisory)
www.exploit-db.com/exploits/37389/ (VDB Entry, Third Party Advisory, exploit)
koha-community.org/security-release-koha-3-16-12/ (Product, Release Notes, Vendor Advisory)
bugs.koha-community.org/bugzilla3/show_bug.cgi (Exploit, Issue Tracking, Vendor Advisory)
seclists.org/fulldisclosure/2015/Jun/80 (mailing-list, Exploit, Mailing List, Third Party Advisory)
koha-community.org/security-release-koha-3-18-8/ (Product, Release Notes, Vendor Advisory)
koha-community.org/security-release-koha-3-20-1/ (Product, Release Notes, Vendor Advisory)
koha-community.org/koha-3-14-16-released/ (Product, Release Notes, Vendor Advisory)

Frequently asked questions

What is CVE-2015-4630?: CVE-2015-4630 is a high-severity vulnerability in Koha, classified under Cross-Site Request Forgery (CSRF). CVSS score: 8.0/10. Published 2018-10-18.
How severe is CVE-2015-4630?: High severity. CVSS v3 base score is 8.0 out of 10.