How severe is CVE-2018-1000670?

CVE-2018-1000670 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2018-1000670 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-1000670?

CVE-2018-1000670 affects Koha. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-1000670?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2018-1000670 published?

CVE-2018-1000670 was published on 2018-09-06 and last updated on 2026-06-17.

CVE-2018-1000670

CVE-2018-1000670 is a medium-severity vulnerability in Koha with a CVSS 3.x base score of 6.1. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Koha
Published: 2018-09-06
Last modified: 2026-06-17

Description

KOHA Library System version 16.11.x (up until 16.11.13) and 17.05.x (up until 17.05.05) contains a Cross Site Scripting (XSS) vulnerability in Multiple fields on multiple pages including /cgi-bin/koha/acqui/supplier.pl?op=enter , /cgi-bin/koha/circ/circulation.pl?borrowernumber=[number] , /cgi-bin/koha/serials/subscription-add.pl that can result in Privilege escalation by taking control of higher privileged users browser sessions. This attack appear to be exploitable via Victims must be socially engineered to visit a vulnerable webpage containing malicious payload. This vulnerability appears to have been fixed in 17.11.

Frequently asked questions

What is CVE-2018-1000670?: KOHA Library System version 16.11.x (up until 16.11.13) and 17.05.x (up until 17.05.05) contains a Cross Site Scripting (XSS) vulnerability in Multiple fields on multiple pages including /cgi-bin/koha/acqui/supplier.pl?op=enter , /cgi-bin/koha/circ/circulation.pl?borrowernumber=[number] , /cgi-bin/koha/serials/subscription-add.pl that can result in Privilege escalation by taking control of higher privileged users browser sessions. This attack appear to be exploitable via Victims must be socially engineered to visit a vulnerable webpage containing malicious payload. This vulnerability appears to have been fixed in 17.11.
How severe is CVE-2018-1000670?: CVE-2018-1000670 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2018-1000670 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-1000670?: CVE-2018-1000670 affects Koha. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-1000670?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2018-1000670 published?: CVE-2018-1000670 was published on 2018-09-06 and last updated on 2026-06-17.

References

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=19086

Affected products (1)

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

More vulnerabilities in Koha

CVE-2014-1925 — Critical (CVSS 9.8): SQL injection vulnerability in the MARC framework import/export function (admin/import_export_framework.pl) in Koha…
CVE-2014-1924 — Critical (CVSS 9.8): The MARC framework import/export function (admin/import_export_framework.pl) in Koha before 3.8.23, 3.10.x before…
CVE-2015-4633 — Critical (CVSS 9.8): 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…
CVE-2024-28740 — Critical (CVSS 9.6): Cross Site Scripting vulnerability in Koha ILS 23.05 and before allows a remote attacker to execute arbitrary code via…
CVE-2026-31844 — High (CVSS 8.8): An authenticated SQL Injection vulnerability (CWE-89) exists in the Koha staff interface in the…
CVE-2018-1000669 — High (CVSS 8.8): KOHA Library System version 16.11.x (up until 16.11.13) and 17.05.x (up until 17.05.05) contains a Cross Site Request…

All CVEs affecting Koha →

Other CWE-79 (Cross-site Scripting (XSS)) vulnerabilities

CVE-2025-49410 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Imran Emu TC…
CVE-2024-47875 — Critical (CVSS 10.0): DOMPurify is a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMpurify was vulnerable to…
CVE-2024-6886 — Critical (CVSS 10.0): Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Gitea…
CVE-2023-45144 — Critical (CVSS 10.0): com.xwiki.identity-oauth:identity-oauth-ui is a package to aid in building identity and service providers based on…
CVE-2023-45138 — Critical (CVSS 10.0): Change Request is an pplication allowing users to request changes on a wiki without publishing the changes directly.…
CVE-2022-4361 — Critical (CVSS 10.0): Keycloak, an open-source identity and access management solution, has a cross-site scripting (XSS) vulnerability in the…

Browse all CWE-79 (Cross-site Scripting (XSS)) vulnerabilities →