CVE-2015-4630

Exp

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: 2018-10-18 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-4630 is rated High Exploit Risk (71.4/100): CVSS High severity, with medium exploitation likelihood (EPSS 0.64%). 4 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2015-4630

EDB-ID Source Kind Published Link
37389 exploit_db edb 2015-06-26 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2015-4630

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2025-09-18 0.68% 0.64% -0.04%
2 2025-05-06 0.91% 0.68% -0.23%
3 2025-03-30 — 0.91% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-4630

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.0 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.1 5.9 [email protected]
6.0 2.0 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.8 6.4 [email protected]

Weakness enumeration for CVE-2015-4630

Affected software / configurations for CVE-2015-4630

Vendor Product Version Raw CPE
koha koha >= 3.14.00, < 3.14.16 cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*
koha koha >= 3.16.00, < 3.16.12 cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*
koha koha >= 3.18.0, < 3.18.8 cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*
koha koha >= 3.20.00, < 3.20.1 cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*

References for CVE-2015-4630

URL Tags
https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=14423 Exploit Issue Tracking Vendor Advisory
https://koha-community.org/koha-3-14-16-released/ Product Release Notes Vendor Advisory
https://koha-community.org/security-release-koha-3-16-12/ Product Release Notes Vendor Advisory
https://koha-community.org/security-release-koha-3-18-8/ Product Release Notes Vendor Advisory
https://koha-community.org/security-release-koha-3-20-1/ Product Release Notes Vendor Advisory
https://packetstormsecurity.com/files/132458/Koha-ILS-3.20.x-CSRF-XSS-Traversal-SQL-Injection.html Exploit Third Party Advisory VDB Entry
https://seclists.org/fulldisclosure/2015/Jun/80 Exploit Mailing List Third Party Advisory
https://www.exploit-db.com/exploits/37389/ Third Party Advisory VDB 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/ Third Party Advisory
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