CVE-2024-28740
Published: 06 August 2024
Summary
CVE-2024-28740 is a critical-severity Cross-site Scripting (CWE-79) vulnerability in Koha Koha. Its CVSS base score is 9.6 (Critical).
Operationally, ranked in the top 9.4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
CVE-2024-28740 is a cross-site scripting vulnerability, tracked under CWE-79, that affects Koha ILS versions 23.05 and earlier. The flaw resides in the additional-contents.pl component and carries a CVSS 3.1 score of 9.6, reflecting network attack vector, low complexity, no required privileges, and required user interaction with changed scope and high impact on confidentiality, integrity, and availability.
A remote attacker can exploit the issue by supplying malicious input through the affected component, resulting in arbitrary code execution within the context of a victim's session. The high severity rating indicates that successful exploitation can fully compromise the confidentiality, integrity, and availability of the targeted Koha instance.
The two referenced technical write-ups describe the discovery of the XSS vector and its escalation to one-click remote code execution, but contain no official patch or mitigation guidance. The associated EPSS score has remained flat at 0.0564 with no material increase since disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2024-25829
Vulnerability details
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.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Penetration testing submits XSS payloads to web applications, detecting cross-site scripting flaws for subsequent remediation.
Validates web inputs to reject script-related content that could produce XSS.
Output validation against expected content can reject or sanitize script content in generated web pages, reducing XSS exploitability.