How severe is CVE-2024-28740?

CVE-2024-28740 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-28740 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2024-28740?

CVE-2024-28740 affects Koha. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2024-28740?

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.

Does CVE-2024-28740 have an EU (EUVD) identifier?

Yes. CVE-2024-28740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-25829.

When was CVE-2024-28740 published?

CVE-2024-28740 was published on 2024-08-06 and last updated on 2026-06-17.

CVE-2024-28740

CVE-2024-28740 is a critical-severity vulnerability in Koha with a CVSS 3.x base score of 9.6. 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: Critical (CVSS 3.x base score 9.6)
EPSS exploit prediction: 1% (48th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2024-25829
Weakness: CWE-79
Affected product: Koha
Published: 2024-08-06
Last modified: 2026-06-17

Description

Cross Site Scripting vulnerability in Koha ILS 23.05 and before allows a remote attacker to execute arbitrary code via the additonal-contents.pl component.

Frequently asked questions

What is CVE-2024-28740?: Cross Site Scripting vulnerability in Koha ILS 23.05 and before allows a remote attacker to execute arbitrary code via the additonal-contents.pl component.
How severe is CVE-2024-28740?: CVE-2024-28740 has a CVSS 3.x base score of 9.6, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2024-28740 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (48th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2024-28740?: CVE-2024-28740 affects Koha. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2024-28740?: 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.
Does CVE-2024-28740 have an EU (EUVD) identifier?: Yes. CVE-2024-28740 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-25829.
When was CVE-2024-28740 published?: CVE-2024-28740 was published on 2024-08-06 and last updated on 2026-06-17.

References

Affected products (1)

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

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