How severe is CVE-2015-4633?

CVE-2015-4633 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2015-4633 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-4633?

CVE-2015-4633 affects Koha. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2015-4633?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2015-4633 published?

CVE-2015-4633 was published on 2018-10-18 and last updated on 2026-06-17.

CVE-2015-4633

CVE-2015-4633 is a critical-severity vulnerability in Koha with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-89.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-89
Affected product: Koha
Published: 2018-10-18
Last modified: 2026-06-17

Description

Multiple SQL injection 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 (1) remote attackers to execute arbitrary SQL commands via the number parameter to opac-tags_subject.pl in the OPAC interface or (2) remote authenticated users to execute arbitrary SQL commands via the Filter or (3) Criteria parameter to reports/borrowers_out.pl in the Staff interface.

Frequently asked questions

What is CVE-2015-4633?: Multiple SQL injection 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 (1) remote attackers to execute arbitrary SQL commands via the number parameter to opac-tags_subject.pl in the OPAC interface or (2) remote authenticated users to execute arbitrary SQL commands via the Filter or (3) Criteria parameter to reports/borrowers_out.pl in the Staff interface.
How severe is CVE-2015-4633?: CVE-2015-4633 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2015-4633 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-4633?: CVE-2015-4633 affects Koha. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2015-4633?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2015-4633 published?: CVE-2015-4633 was published on 2018-10-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*

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